chore: Make reading env file cache strict (#9863)

.github/actions/env-read-file/action.yml

@@ -9,7 +9,6 @@ runs:
       with:
         path: gh.env
         key: env-cache-${{ hashFiles('gh.env') }}
-        restore-keys: env-cache-
     - name: Set Environment Variables
       uses: tw3lveparsecs/github-actions-setvars@latest
       with: