Remove unused PHP-8.3 generated JIT files (#14622)

This remove unused PHP-8.3 generated JIT files and adds PHP-8.3
generated JIT files back to .gitignore to have smoother workflow
when switching PHP branches this can be ignored for a branch
or two.

Author: petk

.gitignore

@@ -166,6 +166,11 @@ php
 # Extensions files
 # ------------------------------------------------------------------------------
 
+# Miscellaneous extensions files
+/ext/opcache/jit/zend_jit_x86.c
+/ext/opcache/jit/zend_jit_arm64.c
+/ext/opcache/minilua
+
 # Generated by `cd ext/name && phpize && ./configure`
 /ext/*/build/
 /ext/*/configure.ac