Add GHA CI workflow

.gitattributes

@@ -1,5 +1,6 @@
 /.coveralls.yml export-ignore
 /.gitattributes export-ignore
+/.github/ export-ignore
 /.gitignore export-ignore
 /.travis.yml export-ignore
 /docs/ export-ignore

.github/workflows/continuous-integration.yml

@@ -0,0 +1,33 @@
+name: "Continuous Integration"
+
+on:
+  pull_request:
+  push:
+    branches:
+      - '[0-9]+.[0-9]+.x'
+      - 'refs/pull/*'
+    tags:
+
+jobs:
+  matrix:
+    name: Generate job matrix
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.matrix.outputs.matrix }}
+    steps:
+      - name: Gather CI configuration
+        id: matrix
+        uses: laminas/laminas-ci-matrix-action@v1
+
+  qa:
+    name: QA Checks
+    needs: [matrix]
+    runs-on: ${{ matrix.operatingSystem }}
+    strategy:
+      fail-fast: false
+      matrix: ${{ fromJSON(needs.matrix.outputs.matrix) }}
+    steps:
+      - name: ${{ matrix.name }}
+        uses: laminas/laminas-continuous-integration-action@v1
+        with:
+          job: ${{ matrix.job }}

.gitignore

@@ -1,5 +1,4 @@
 /clover.xml
-/composer.lock
 /coveralls-upload.json
 /phpunit.xml
 /vendor/