Fix #81424: PCRE2 10.35 JIT performance regression

We backport the respective upstream fix[1] to our bundled pcre2lib plus
the follow-up fix[2] for a functional regression.

[1] <dc5f966635>
[2] <e7af7efaa1>

Closes GH-7573.

ext/pcre/tests/bug81424a.phpt

@@ -0,0 +1,18 @@
+--TEST--
+Bug #81424 (PCRE2 10.35 JIT performance regression)
+--DESCRIPTION--
+We're testing against the functional regression which has been introduced by
+fixing the performance regression.
+--FILE--
+<?php
+var_dump(
+    preg_match('/(?P<size>\d+)m|M/', "4M", $m),
+    $m
+);
+?>
+--EXPECT--
+int(1)
+array(1) {
+  [0]=>
+  string(1) "M"
+}