Update bundled PCRE2-library to version 10.23

Some manual changes done to the library were lost with this update.
They will be added in the next commit.

pcre2/testdata/testoutput18

@@ -1,20 +1,171 @@
 # This set of tests is run only with the 8-bit library. It tests the POSIX
-# interface with UTF/UCP support, which is supported only with the 8-bit
-# library. This test should not be run with JIT (which is not available for the
-# POSIX interface).
+# interface, which is supported only with the 8-bit library. This test should
+# not be run with JIT (which is not available for the POSIX interface).
     
+#forbid_utf
 #pattern posix
 
-/a\x{1234}b/utf
-    a\x{1234}b
- 0: a\x{1234}b
+# Test invalid options
 
-/\w/
-    +++\x{c2}
+/abc/auto_callout
+** Ignored with POSIX interface: auto_callout
+
+/abc/
+   abc\=find_limits
+** Ignored with POSIX interface: find_limits
+ 0: abc
+
+/abc/
+  abc\=partial_hard
+** Ignored with POSIX interface: partial_hard
+ 0: abc
+
+# Real tests
+
+/abc/
+    abc
+ 0: abc
+
+/^abc|def/
+    abcdef
+ 0: abc
+    abcdef\=notbol
+ 0: def
+
+/.*((abc)$|(def))/
+    defabc
+ 0: defabc
+ 1: abc
+ 2: abc
+    defabc\=noteol
+ 0: def
+ 1: def
+ 3: def
+
+/the quick brown fox/
+    the quick brown fox
+ 0: the quick brown fox
+\= Expect no match
+    The Quick Brown Fox
 No match: POSIX code 17: match failed
 
-/\w/ucp
-    +++\x{c2}
- 0: \xc2
-    
-# End of testdata/testinput17
+/the quick brown fox/i
+    the quick brown fox
+ 0: the quick brown fox
+    The Quick Brown Fox
+ 0: The Quick Brown Fox
+
+/(*LF)abc.def/
+\= Expect no match
+    abc\ndef
+No match: POSIX code 17: match failed
+
+/(*LF)abc$/
+    abc
+ 0: abc
+    abc\n
+ 0: abc
+
+/(abc)\2/
+Failed: POSIX code 15: bad back reference at offset 6     
+
+/(abc\1)/
+\= Expect no match
+    abc
+No match: POSIX code 17: match failed
+
+/a*(b+)(z)(z)/
+    aaaabbbbzzzz
+ 0: aaaabbbbzz
+ 1: bbbb
+ 2: z
+ 3: z
+    aaaabbbbzzzz\=ovector=0
+Matched without capture
+    aaaabbbbzzzz\=ovector=1
+ 0: aaaabbbbzz
+    aaaabbbbzzzz\=ovector=2
+ 0: aaaabbbbzz
+ 1: bbbb
+
+/(*ANY)ab.cd/
+    ab-cd
+ 0: ab-cd
+    ab=cd
+ 0: ab=cd
+\= Expect no match
+    ab\ncd
+No match: POSIX code 17: match failed
+
+/ab.cd/s
+    ab-cd
+ 0: ab-cd
+    ab=cd
+ 0: ab=cd
+    ab\ncd
+ 0: ab\x0acd
+
+/a(b)c/posix_nosub
+    abc
+Matched with REG_NOSUB
+
+/a(?P<name>b)c/posix_nosub
+    abc
+Matched with REG_NOSUB
+
+/(a)\1/posix_nosub
+    zaay
+Matched with REG_NOSUB
+
+/a?|b?/
+    abc
+ 0: a
+\= Expect no match
+    ddd\=notempty
+No match: POSIX code 17: match failed
+
+/\w+A/
+   CDAAAAB
+ 0: CDAAAA
+
+/\w+A/ungreedy
+   CDAAAAB
+ 0: CDA
+   
+/\Biss\B/I,aftertext
+** Ignored with POSIX interface: info
+    Mississippi
+ 0: iss
+ 0+ issippi
+
+/abc/\
+Failed: POSIX code 9: bad escape sequence at offset 4     
+
+"(?(?C)"
+Failed: POSIX code 11: unbalanced () at offset 6     
+
+"(?(?C))"
+Failed: POSIX code 3: pattern error at offset 6     
+
+/abcd/substitute_extended
+** Ignored with POSIX interface: substitute_extended
+
+/\[A]{1000000}**/expand,regerror_buffsize=31
+Failed: POSIX code 4: ? * + invalid at offset 100000
+** regerror() message truncated
+
+/\[A]{1000000}**/expand,regerror_buffsize=32
+Failed: POSIX code 4: ? * + invalid at offset 1000001
+
+//posix_nosub
+    \=offset=70000
+** Ignored with POSIX interface: offset
+Matched with REG_NOSUB
+
+/(?=(a\K))/
+    a
+Start of matched string is beyond its end - displaying from end to start.
+ 0: a
+ 1: a
+     
+# End of testdata/testinput18