ci: Start supporting node.js 18 (#4518)

* ci: start supporting node.js 18

Node.js 18 becomes the active LTS on 2022-10-25, as Node.js 16 goes into maintenance mode.
https://github.com/nodejs/Release#release-schedule

* continue using node 16 for production images

* node 16 for debian and base images as well for now

.github/workflows/ci-postgres-mysql.yml

@@ -15,12 +15,17 @@ jobs:
       DB_MYSQLDB_PASSWORD: password
       DB_POSTGRESDB_PASSWORD: password
 
+    strategy:
+      matrix:
+        node-version: [14.x, 16.x, 18.x]
+
     steps:
       - uses: actions/checkout@v3
 
-      - uses: actions/setup-node@v3
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
         with:
-          node-version: 16.x
+          node-version: ${{ matrix.node-version }}
           cache: 'npm'
 
       - name: Install npm and dependencies