build: explicitly point to config files

Author: bcoe

.github/workflows/release-please.yml

@@ -12,7 +12,8 @@ jobs:
         id: release
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-          release-type: node
+          config-file: release-please-config.json
+          manifest-file: .release-please-manifest.json
       # The logic below handles the npm publication:
       - uses: actions/checkout@v3
         # these if statements ensure that a publication only occurs when