build(qa): Switch deprecated `set-output` to `$GITHUB_OUTPUT`

https://github.blog/changelog/2023-07-24-github-actions-update-on-save-state-and-set-output-commands/

Signed-off-by: Josh <josh.t.richards@gmail.com>

.github/workflows/qa.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check if secrets are available
-        run: echo "::set-output name=ok::${{ secrets.KS_PASS != '' }}"
+        run: echo "ok=${{ secrets.KS_PASS != '' }}" >> "$GITHUB_OUTPUT"
         id: check-secrets
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
         if: ${{ steps.check-secrets.outputs.ok == 'true' }}