feat(ci): replace travis with github action

Author: eljam

.github/unit-tests.yml

@@ -0,0 +1,53 @@
+name: Unit Tests
+
+on:
+  push:
+  pull_request:
+
+defaults:
+  run:
+    shell: bash
+
+concurrency:
+    group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+    cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+
+  tests:
+    name: Unit Tests
+
+    strategy:
+      matrix:
+        include:
+          - php: '8.0'
+          - php: '8.1'
+          - php: '8.2'
+          - php: '8.3'
+          - php: '8.4'
+      fail-fast: false
+
+    runs-on: ubuntu-20.04
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          coverage: "none"
+          ini-values: date.timezone=UTC,memory_limit=-1,default_socket_timeout=10,session.gc_probability=0,apc.enable_cli=1,zend.assertions=1
+          php-version: "${{ matrix.php }}"
+          tools: flex
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress --no-suggest
+
+      - name: Run tests
+        run: bin/phpunit --configuration phpunit.xml.dist

.github/workflows/unit-tests.yml

@@ -0,0 +1,56 @@
+name: Unit Tests
+
+on:
+  push:
+  pull_request:
+
+defaults:
+  run:
+    shell: bash
+
+concurrency:
+    group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+    cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+
+  tests:
+    name: Unit Tests
+
+    strategy:
+      matrix:
+        include:
+          - php: '8.3'
+          - php: '8.4'
+      fail-fast: false
+
+    runs-on: ubuntu-20.04
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          coverage: "none"
+          ini-values: date.timezone=UTC,memory_limit=-1,default_socket_timeout=10,session.gc_probability=0,apc.enable_cli=1,zend.assertions=1
+          php-version: "${{ matrix.php }}"
+          tools: flex
+
+      - name: Install optional commands
+        if: matrix.php == '8.4'
+        run: |
+          sudo apt-get update
+          sudo apt-get install zopfli
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress --no-suggest
+
+      - name: Run tests
+        run: bin/phpunit --configuration phpunit.xml.dist