feat: add support for Express v5 (#691) (#692)

* feat: upgrade to the express@5.x (#691)

* upgraded to the express@5.x,
* adjusted the ServerlessRequest to the express@5.x implementation,
* ran: npm audit and npm audit fix,

* feat: upgrade to the express@5.x (#691)

* removed unnecessary workflows for the node.js 14 and 16,
* updated the Node.js engine version to >= 18

---------

Co-authored-by: pantyporowicz <pantyporowicz@squiz.net>

.github/workflows/release-on-push-to-mainline.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x, 20.x]
+        node-version: [18.x, 20.x, 22.x]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -20,14 +20,7 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
 
-      # 14.x fails with "npm ERR! Cannot read property '@commitlint/config-conventional' of undefined"
-      # when running `npm ci` due to the new package-lock.json format. Run `npm i` instead
-      - name: Install (14.x)
-        if: matrix.node-version == '14.x'
-        run: npm i
-
       - name: Install
-        if: matrix.node-version != '14.x'
         run: npm ci
 
       - name: Test

.gitignore

@@ -11,3 +11,4 @@ examples/nextjs
 typescript-out
 .build
 .serverless
+.idea