CI: lint instead of CodeQL.

.github/workflows/codeql-analysis.yml

@@ -1,31 +0,0 @@
-name: "CodeQL"
-
-on:
-  push:
-    branches: [main]
-  pull_request:
-    branches: [main]
-  schedule:
-    - cron: '0 6 * * 1'
-
-jobs:
-  analyse:
-    name: Analyse
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2.3.4
-      with:
-        fetch-depth: 2
-
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      with:
-        languages: java
-
-    - run: |
-       ./gradlew build
-
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1

.github/workflows/lint.yml

@@ -0,0 +1,19 @@
+name: Linting
+
+on: [ push ]
+
+jobs:
+  analyse:
+    name: Analyse
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2.3.4
+
+      - uses: actions/setup-java@v2
+        with:
+          distribution: 'adopt'
+          java-version: '11'
+
+      - run: ./gradlew lint