Added GitHub actions to test compatibility

Author: spont4e

.github/workflows/run-tests-l7.yml

@@ -0,0 +1,36 @@
+name: "Run Tests - Laravel 7"
+
+on:
+  push:
+    branches: [ v2.x ]
+
+  pull_request:
+    branches: [ v2.x ]
+
+jobs:
+  tests:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        php: [7.3, 7.4, 8.0]
+        laravel: [7.*]
+        include:
+          - laravel: 7.*
+            testbench: 5.20
+
+    name: P${{ matrix.php }} - L${{ matrix.laravel }}
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Setup PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php }}
+        extensions: pdo, sqlite, pdo_sqlite
+
+    - name: Install Dependencies
+      run: composer install

.github/workflows/run-tests-l8.yml

@@ -0,0 +1,36 @@
+name: "Run Tests - Laravel 8"
+
+on:
+  push:
+    branches: [ v2.x ]
+
+  pull_request:
+    branches: [ v2.x ]
+
+jobs:
+  tests:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        php: [7.3, 7.4, 8.0]
+        laravel: [8.*]
+        include:
+          - laravel: 8.*
+            testbench: 6.23
+
+    name: P${{ matrix.php }} - L${{ matrix.laravel }}
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Setup PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php }}
+        extensions: pdo, sqlite, pdo_sqlite
+
+    - name: Install Dependencies
+      run: composer install