feat: mask the extra env var values

Author: johncblandii

action.yml

@@ -253,6 +253,9 @@ runs:
       shell: bash
       run: |
         echo '${{ inputs.extra-env-vars }}' > env.json
+        for var in $(jq -r 'keys[]' env.json); do
+          echo "::add-mask::$(jq -r --arg v "$var" '.[$v]' env.json)"
+        done
         cat env.json | jq -r 'to_entries | .[] | "\(.key)=\(.value)"' >> $GITHUB_ENV
 
     - name: Ensure argocd repo structure