fix(firebase-functions): fixed several bugs that prevented functions v2 from working

Author: george43g

.github/workflows/npm-publish.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: [ 18, 20 ]
+        node: [ 14, 16, 18, 20 ]
     name: Node ${{ matrix.node }} test
     steps:
       - uses: actions/checkout@v4