powershell syntax

Signed-off-by: Matthew Peveler <matt.peveler@gmail.com>

Author: MasterOdin

.github/workflows/ci.yml

@@ -130,7 +130,7 @@ jobs:
 
     - name: Get date part for cache key
       id: key-date
-      run: echo "date=$(date +'%Y-%m')" >> $GITHUB_OUTPUT
+      run: echo "date=$(Get-Date -Format 'yyyy-MM')" >> $env:GITHUB_OUTPUT
 
     - name: Setup PHP extensions cache
       id: php-ext-cache
@@ -164,7 +164,7 @@ jobs:
 
     - name: Get composer cache directory
       id: composer-cache
-      run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+      run: echo "dir=$(composer config cache-files-dir)" >> $env:GITHUB_OUTPUT
 
     - name: Cache composer dependencies
       uses: actions/cache@v4