align pnpm/action-setup version for dependabot (#80)

Author: martin-mfg

.github/actions/install-dependencies/action.yml

@@ -14,7 +14,7 @@ runs:
 
   steps:
     - name: Install pnpm
-      uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v5
+      uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v5.0.0
 
     - name: Setup Node.js (via input)
       if: ${{ inputs.node-version }}