SQSCANGHA-102 Pin actions/cache to a full-length commit SHA (#199)

Author: daantimmer

action.yml

@@ -33,7 +33,7 @@ runs:
         INPUT_SCANNERVERSION: ${{ inputs.scannerVersion }}
     - name: Load Sonar Scanner CLI from cache
       id: sonar-scanner-cli
-      uses: actions/cache@v4
+      uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 #v4.2.4
       env:
         # The default value is 60mins. Reaching timeout is treated the same as a cache miss.
         SEGMENT_DOWNLOAD_TIMEOUT_MINS: 1