Pull in upstream changes (#5)

* Remove husky and pretty-quick

* Bump node-gcm and web-push

* Bump babel and mocha

* Release 2.1.1

* npm audit fix

---------

Co-authored-by: Alexander Friedl <mail@alexanderfriedl.com>
Co-authored-by: Alexander Friedl <alex-friedl@users.noreply.github.com>

.github/workflows/ci.yml

@@ -8,12 +8,12 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 15.x, 16.x, 17.x]
+        node-version: [12.x, 14.x, 16.x, 18.x, 20.x]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
       - name: Install dependencies