ci: lint and commitlint in its own workflow

Source of inspiration: karma-runner/karma-jasmine#313

.github/workflows/lint.yml

@@ -0,0 +1,25 @@
+name: Lint
+
+on:
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  linux:
+    name: Linux - Lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-node@v2
+        with:
+          node-version: 14
+          cache: npm
+      - run: npm ci
+      - run: |
+          npm run commitlint -- \
+          --verbose \
+          --from `git merge-base origin/master $GITHUB_SHA`
+      - run: npm run lint

.github/workflows/test.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   main:
-    name: Lint and Unit (Client and Server), E2E and Integration Test
+    name: Unit (Client and Server), E2E and Integration Test
     runs-on: ubuntu-latest
     env:
       BROWSERSTACK_USERNAME: ${{ secrets.BROWSERSTACK_USERNAME }}
@@ -23,8 +23,6 @@ jobs:
           node-version: 14
           cache: npm
       - run: npm ci
-      - run: npm run commitlint -- --from `git merge-base origin/master $GITHUB_SHA`
-      - run: npm run lint
       - run: npm run build:check
       - run: npm run test:unit
       - run: npm run test:e2e