chore(license): Update project license from MIT to AGPL-3.0

[Ahzyuan]

refactor: update project license from MIT to AGPL-3.0

Updated license information in multiple files:

• .github/release-drafter.yml
• .github/workflows/badge_updater.yml
• .github/workflows/compatibility_test.yml
• .github/workflows/minimal_test.yml
• .github/workflows/pr_autolabel.yml
• .github/workflows/publish_release.yml
• LICENSE (replaced MIT license with AGPL-3.0 license)
• README.md
• examples/demo.ipynb
• ruff.toml
• setup.cfg

[github-actions]

Coverage Details on macos under Python 3.8

File	Stmts	Miss	Cover	Missing
_stat_numeric.py	113	0	100%
config.py	280	10	96%	330, 367, 509, 515, 579–584
core.py	370	13	96%	417–418, 423, 460–461, 522, 664, 729, 792, 856, 1819, 1825, 1830
display.py	436	6	98%	83, 437–438, 440, 799, 901
engine.py	106	0	100%
statistic.py	443	15	96%	54, 60, 66, 72, 77, 207, 792, 850–855, 868–869
unit.py	41	0	100%
utils.py	127	1	99%	71
TOTAL	1916	45	97%

Summary (on macos under Python 3.8)

Tests	Skipped	Failures	Errors	Time
806	2 💤	0 ❌	0 🔥	6.743s ⏱️

[github-actions]

Coverage Details on ubuntu under Python 3.8

File	Stmts	Miss	Cover	Missing
_stat_numeric.py	113	0	100%
config.py	280	10	96%	330, 367, 509, 515, 579–584
core.py	370	13	96%	417–418, 423, 460–461, 522, 664, 729, 792, 856, 1819, 1825, 1830
display.py	436	6	98%	83, 437–438, 440, 799, 901
engine.py	106	0	100%
statistic.py	443	15	96%	54, 60, 66, 72, 77, 207, 792, 850–855, 868–869
unit.py	41	0	100%
utils.py	127	1	99%	71
TOTAL	1916	45	97%

Summary (on ubuntu under Python 3.8)

Tests	Skipped	Failures	Errors	Time
806	2 💤	0 ❌	0 🔥	12.008s ⏱️

[github-actions]

Coverage Details on windows under Python 3.8

File	Stmts	Miss	Cover	Missing
_stat_numeric.py	113	0	100%
config.py	280	10	96%	330, 367, 509, 515, 579–584
core.py	370	13	96%	417–418, 423, 460–461, 522, 664, 729, 792, 856, 1819, 1825, 1830
display.py	436	6	98%	83, 437–438, 440, 799, 901
engine.py	106	0	100%
statistic.py	443	15	96%	54, 60, 66, 72, 77, 207, 792, 850–855, 868–869
unit.py	41	0	100%
utils.py	127	1	99%	71
TOTAL	1916	45	97%

Summary (on windows under Python 3.8)

Tests	Skipped	Failures	Errors	Time
806	2 💤	0 ❌	0 🔥	13.199s ⏱️