workflows: Consolidate, update and remove travis references

Use naming and base images that are consistent with other repositories.

.github/workflows/continuous-integration.yaml

@@ -0,0 +1,61 @@
+name: Run Tests
+
+on: [push, pull_request]
+
+jobs:
+
+  test-library:
+    runs-on: ubuntu-latest
+    container: ghcr.io/quattor/quattor-test-container:latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    - name: Install dependencies
+      run: yum -y install subversion
+    - name: run tests
+      run: .ci-scripts/test-library
+      env:
+        TRAVIS_BUILD_DIR: "$GITHUB_WORKSPACE"
+        TRAVIS_REPO_SLUG: "$GITHUB_REPOSITORY"
+        TRAVIS_BRANCH: "${GITHUB_HEAD_REF:-master}"
+
+  panlint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          # we need the full repo or HEAD^ does not work
+          fetch-depth: 0
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3
+      - name: Install dependencies
+        run: pip install colorama prettytable six
+      - name: run panlint
+        run: .ci-scripts/panlint
+
+  indentation:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          # we need the full repo or HEAD^ does not work
+          fetch-depth: 0
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3
+      - name: run indent checker
+        run: .ci-scripts/indent
+
+  test-templates:
+    runs-on: ubuntu-latest
+    container: ghcr.io/quattor/quattor-test-container:latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    - name: test templates
+      run: .ci-scripts/test-templates