Migrate from TravisCI to GitHub actions

.gitignore

@@ -1,5 +1,5 @@
 vendor/*/
-qocache
+/qocache
 *.test
 *.out
 *.prof

github/workflows/ci.yaml

@@ -0,0 +1,40 @@
+name: CI
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        go-version: ["1.21.x"]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ matrix.go-version }}
+        id: go
+
+      - name: Install dependencies
+        run: make dev-deps
+
+      - name: Run tests
+        run: make ci
+
+      - name: Update coverage report
+        uses: ncruces/go-coverage-report@v0
+        with:
+          report: true
+          chart: true
+          amend: true
+          reuse-go: true
+        if: |
+          github.event_name == 'push'
+        continue-on-error: true