Remove sqlite tests from CI (#78)

Save environment, most people will not use sqlite anyway.

.github/workflows/ci.yaml

@@ -138,41 +138,6 @@ jobs:
       - name: Code Quality (by PHPStan)
         run: ./vendor/bin/phpstan analyse
 
-  tests-sqlite:
-    runs-on: ubuntu-latest
-    needs:
-      - php-linting
-      - xml-linting
-    strategy:
-      matrix:
-        include:
-          - php-version: '7.2'
-            typo3-version: '^10.4'
-          - php-version: '7.3'
-            typo3-version: '^10.4'
-          - php-version: '7.4'
-            typo3-version: '^10.4'
-          - php-version: '7.4'
-            typo3-version: '^11.5'
-          - php-version: '8.0'
-            typo3-version: '^11.5'
-          - php-version: '8.1'
-            typo3-version: '^11.5'
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Install PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: "${{ matrix.php-version }}"
-          tools: composer:v2
-
-      - name: Install dependencies
-        run: composer require --no-interaction --prefer-dist --no-progress "typo3/cms-backend:${{ matrix.typo3-version }}" "typo3/cms-core:${{ matrix.typo3-version }}" "typo3/cms-extbase:${{ matrix.typo3-version }}" "typo3/cms-frontend:${{ matrix.typo3-version }}" "typo3/cms-fluid-styled-content:${{ matrix.typo3-version }}"
-
-      - name: PHPUnit Tests
-        run: ./vendor/bin/phpunit --testdox
-
   tests-mysql:
     runs-on: ubuntu-latest
     needs: