main/pcre2: upgrade to 10.38

• https://github.com/PhilipHazel/pcre2/releases/tag/pcre2-10.38
• https://groups.google.com/g/pcre2-dev/c/L4KKPNDk9t4

 usr/lib/libpcre2-32.so.0
-usr/lib/libpcre2-32.so.0.10.2
+usr/lib/libpcre2-32.so.0.10.3

Ref https://github.com/PhilipHazel/pcre2/commit/dc5f96663597572f694147aeec3525003c351123