Fix Windows CI

Author: tvdijen

.github/workflows/php.yml

@@ -144,7 +144,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Get composer cache directory
-        run: echo COMPOSER_CACHE="$(composer config cache-files-dir)" >> "$env:GITHUB_ENV"
+        run: echo COMPOSER_CACHE="$(composer config cache-files-dir)" >> "$GITHUB_ENV"
 
       - name: Get COMPOSER_ROOT_VERSION from composer.json branch alias
         shell: bash
@@ -154,7 +154,7 @@ jobs:
               echo "Could not read extra.branch-alias.dev-master from composer.json" >&2
               exit 1
             fi
-            echo "COMPOSER_ROOT_VERSION=$ROOT_VERSION" >> "$env:GITHUB_ENV"
+            echo COMPOSER_ROOT_VERSION="$ROOT_VERSION" >> "$GITHUB_ENV"
 
       - name: Cache composer dependencies
         uses: actions/cache@v5