branch-3.1: [Fix](JsonReader) Fix the issue where the null bitmap of the JSON reader was not initialized when the JSON path is specified as '$.’ #52211

[github-actions]

Cherry-picked from #52211

[hello-stephen]

Thank you for your contribution to Apache Doris.
Don't know what should be done next? See How to process your PR.

Please clearly describe your PR:

1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
3. What features were added. Why was this function added?
4. Which code was refactored and why was this part of the code refactored?
5. Which functions were optimized and what is the difference before and after the optimization?

[hello-stephen]

run buildall

[doris-robot]

TPC-H: Total hot run time: 39487 ms

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/tpch-tools
Tpch sf100 test result on commit ddf1dbf0c7d6dbfbe0e20371f9e176040bb6329c, data reload: false

------ Round 1 ----------------------------------
q1	17583	6812	6609	6609
q2	2072	172	166	166
q3	10598	1073	1152	1073
q4	10444	718	700	700
q5	7760	2820	2778	2778
q6	218	140	133	133
q7	964	612	611	611
q8	9356	1979	1970	1970
q9	6572	6398	6417	6398
q10	6991	2268	2264	2264
q11	458	266	257	257
q12	401	211	201	201
q13	17767	2943	2946	2943
q14	238	208	220	208
q15	500	461	459	459
q16	471	373	377	373
q17	964	505	540	505
q18	7178	6648	6631	6631
q19	1319	982	1078	982
q20	478	201	197	197
q21	4281	3115	3055	3055
q22	1074	987	974	974
Total cold run time: 107687 ms
Total hot run time: 39487 ms

----- Round 2, with runtime_filter_mode=off -----
q1	6602	6537	6515	6515
q2	324	224	229	224
q3	2900	2712	2735	2712
q4	2051	1832	1787	1787
q5	5760	5704	5719	5704
q6	205	124	125	124
q7	2230	1762	1784	1762
q8	3385	3544	3514	3514
q9	8835	8788	8903	8788
q10	3565	3525	3512	3512
q11	597	499	498	498
q12	798	641	630	630
q13	9432	3142	3073	3073
q14	289	284	270	270
q15	503	458	468	458
q16	493	449	436	436
q17	1819	1584	1612	1584
q18	8144	7718	7810	7718
q19	1698	1477	1543	1477
q20	2107	1880	1895	1880
q21	5076	4943	4969	4943
q22	1120	1045	991	991
Total cold run time: 67933 ms
Total hot run time: 58600 ms

[doris-robot]

TPC-DS: Total hot run time: 197292 ms

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/tpcds-tools
TPC-DS sf100 test result on commit ddf1dbf0c7d6dbfbe0e20371f9e176040bb6329c, data reload: false

query1	1299	895	893	893
query2	6248	1939	1898	1898
query3	10849	4468	4138	4138
query4	61586	28772	23913	23913
query5	5285	454	441	441
query6	405	181	176	176
query7	5484	310	303	303
query8	315	229	231	229
query9	8593	2614	2571	2571
query10	474	270	256	256
query11	17676	15595	15692	15595
query12	154	100	100	100
query13	1434	451	430	430
query14	10515	6613	7210	6613
query15	201	184	181	181
query16	7259	520	481	481
query17	1132	581	605	581
query18	1811	318	304	304
query19	237	160	153	153
query20	119	114	112	112
query21	205	105	101	101
query22	4632	4692	4451	4451
query23	34121	34283	34101	34101
query24	6187	2930	2920	2920
query25	573	409	428	409
query26	659	173	171	171
query27	1897	368	374	368
query28	4240	2149	2120	2120
query29	706	477	467	467
query30	250	158	164	158
query31	1004	814	798	798
query32	66	54	58	54
query33	420	309	309	309
query34	924	516	535	516
query35	851	717	721	717
query36	1091	942	942	942
query37	107	61	70	61
query38	4034	3989	3967	3967
query39	1481	1471	1466	1466
query40	203	96	100	96
query41	47	45	49	45
query42	111	96	103	96
query43	527	501	501	501
query44	1184	795	808	795
query45	183	177	176	176
query46	1160	755	734	734
query47	2055	1891	1906	1891
query48	427	351	342	342
query49	718	400	396	396
query50	825	430	430	430
query51	7459	7281	7270	7270
query52	107	87	93	87
query53	252	179	182	179
query54	565	465	461	461
query55	77	84	82	82
query56	257	241	243	241
query57	1350	1204	1192	1192
query58	216	220	221	220
query59	3262	3057	3039	3039
query60	294	291	262	262
query61	120	119	115	115
query62	786	668	706	668
query63	225	185	186	185
query64	1425	669	657	657
query65	3235	3171	3172	3171
query66	696	291	297	291
query67	16029	15659	15791	15659
query68	4259	599	571	571
query69	435	258	264	258
query70	1154	1116	1058	1058
query71	349	270	252	252
query72	6424	4022	4015	4015
query73	743	345	352	345
query74	9371	9005	9295	9005
query75	3341	2643	2670	2643
query76	2007	1078	1136	1078
query77	527	276	263	263
query78	10599	9723	9717	9717
query79	2336	601	611	601
query80	1135	422	434	422
query81	535	218	216	216
query82	216	91	89	89
query83	168	146	146	146
query84	281	82	80	80
query85	1010	302	296	296
query86	375	298	302	298
query87	4449	4252	4228	4228
query88	4556	2359	2317	2317
query89	410	300	286	286
query90	2006	183	181	181
query91	146	110	109	109
query92	61	49	51	49
query93	2367	552	554	552
query94	819	306	282	282
query95	363	255	263	255
query96	609	286	284	284
query97	3304	3154	3145	3145
query98	224	204	195	195
query99	1568	1327	1311	1311
Total cold run time: 314466 ms
Total hot run time: 197292 ms

[doris-robot]

ClickBench: Total hot run time: 28.94 s

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/clickbench-tools
ClickBench test result on commit ddf1dbf0c7d6dbfbe0e20371f9e176040bb6329c, data reload: false

query1	0.04	0.03	0.03
query2	0.07	0.03	0.02
query3	0.23	0.07	0.06
query4	1.62	0.10	0.11
query5	0.50	0.51	0.54
query6	1.13	0.74	0.75
query7	0.02	0.01	0.01
query8	0.05	0.04	0.03
query9	0.55	0.49	0.51
query10	0.57	0.55	0.55
query11	0.14	0.10	0.11
query12	0.14	0.11	0.11
query13	0.60	0.60	0.60
query14	0.78	0.79	0.78
query15	0.83	0.82	0.82
query16	0.38	0.40	0.38
query17	1.07	0.99	1.01
query18	0.23	0.23	0.22
query19	1.88	1.82	1.82
query20	0.01	0.01	0.02
query21	15.41	0.56	0.57
query22	2.33	2.54	1.54
query23	17.02	0.94	0.81
query24	3.67	2.10	0.17
query25	0.13	0.14	0.04
query26	0.48	0.14	0.14
query27	0.04	0.05	0.05
query28	10.00	0.55	0.44
query29	12.55	3.20	3.20
query30	0.25	0.06	0.06
query31	2.87	0.40	0.38
query32	3.23	0.46	0.44
query33	2.96	2.99	3.00
query34	16.99	4.50	4.51
query35	4.55	4.48	4.49
query36	0.67	0.47	0.50
query37	0.09	0.06	0.06
query38	0.04	0.03	0.03
query39	0.03	0.02	0.03
query40	0.17	0.12	0.13
query41	0.08	0.02	0.02
query42	0.03	0.02	0.02
query43	0.03	0.03	0.03
Total cold run time: 104.46 s
Total hot run time: 28.94 s