Fix several patches & newer phpmicro support (#470)

* use upstream phpmicro

* move src/global/tests to src/global/ext-tests

* move src/global/tests to src/global/ext-tests

* prevent file_get_contents memory insufficience

* update README

* fix libxml >= 2.12 with older PHP (<=8.1) build bug

* cleanup code, support newer phpmicro

* add --no-strip and --with-upx-pack tests

* fix windows sanity check for newer phpmicro

* fix windows sanity check for newer phpmicro

* test

* test

* test

* update deps for ci

src/globals/ext-tests/bz2.php

@@ -0,0 +1,8 @@
+<?php
+
+declare(strict_types=1);
+
+$str = 'This is bz2 extension test';
+assert(function_exists('bzdecompress'));
+assert(function_exists('bzcompress'));
+assert(bzdecompress(bzcompress($str, 9)) === $str);