Fixed bug #76909 preg_match difference between 7.3 and < 7.3

Applied upstream patch, see https://bugs.exim.org/show_bug.cgi?id=2321

Author: weltling

ext/pcre/pcre2lib/pcre2_jit_compile.c

@@ -5856,9 +5856,6 @@ int i, j, k, len, c;
 if (!sljit_has_cpu_feature(SLJIT_HAS_CMOV))
   return FALSE;
 
-if (invert)
-  nclass = !nclass;
-
 len = 0;
 
 for (i = 0; i < 32; i++)
@@ -5940,6 +5937,9 @@ if (j != 0)
       }
   }
 
+if (invert)
+  nclass = !nclass;
+
 type = nclass ? SLJIT_NOT_EQUAL : SLJIT_EQUAL;
 add_jump(compiler, backtracks, CMP(type, TMP2, 0, SLJIT_IMM, 0));
 return TRUE;