Fix php.net regex [skip ci]

Author: shivammathur

scripts/build_partials/version.sh

@@ -28,7 +28,7 @@ get_stable_release_tag() {
   source=$1
   if [ "$source" = "--web-php" ]; then
     release_tag="$(curl -sL https://www.php.net/releases/feed.php | grep -Po -m 1 "php-(${PHP_VERSION//./\\.}\.[0-9]+)" | head -n 1)"
-    echo "${release_tag:-$(curl -sL https://www.php.net/releases | grep -Po "${PHP_VERSION//./\\.}\.[0-9]+" | head -n1 | sed 's/^/php-/')}"
+    echo "${release_tag:-$(curl -sL https://www.php.net/releases | grep -Po "<h2>\K${PHP_VERSION//./\\.}\.[0-9]+" | head -n1 | sed 's/^/php-/')}"
   else
     curl -H "Authorization: Bearer $GITHUB_TOKEN" -sL "https://api.github.com/repos/php/php-src/git/matching-refs/tags%2Fphp-$PHP_VERSION." | grep -Eo "php-[0-9]+\.[0-9]+\.[0-9]+\"" | tail -1 | cut -d '"' -f 1
   fi

scripts/check-php-version.sh

@@ -5,7 +5,7 @@ get_stable_release_tag() {
   source=$1
   if [ "$source" = "--web-php" ]; then
     release_tag="$(curl -sL https://www.php.net/releases/feed.php | grep -Po -m 1 "php-(${php_version//./\\.}\.[0-9]+)" | head -n 1)"
-    echo "${release_tag:-$(curl -sL https://www.php.net/releases | grep -Po "${php_version//./\\.}\.[0-9]+" | head -n1 | sed 's/^/php-/')}"
+    echo "${release_tag:-$(curl -sL https://www.php.net/releases | grep -Po "<h2>\K${php_version//./\\.}\.[0-9]+" | head -n1 | sed 's/^/php-/')}"
   else
     curl -H "Authorization: Bearer $GITHUB_TOKEN" -sL "https://api.github.com/repos/php/php-src/git/matching-refs/tags%2Fphp-$php_version." | grep -Eo "php-[0-9]+\.[0-9]+\.[0-9]+\"" | tail -1 | cut -d '"' -f 1
   fi