fix: php-bin directory does not exist at first build

Author: SRWieZ

.github/workflows/build-php.yml

@@ -35,7 +35,9 @@ jobs:
           git clone https://github.com/crazywhalecc/static-php-cli.git
           cd static-php-cli
           git checkout main
-          cd ../php-bin
+          cd ../
+          [ ! -d php-bin ] && mkdir -p php-bin
+          cd php-bin
 
       - shell: bash
         run: |