chore: use git actions instead of travis

.github/workflows/test-and-cov.yml

@@ -0,0 +1,25 @@
+name: Test and coverage
+on:
+  - push
+jobs:
+  test:
+    strategy:
+      matrix:
+        go-version: [1.14.x, 1.18.x]
+        os: [ubuntu-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      # setup golang
+      - name: Install golang
+        uses: actions/setup-go@v3
+        with:
+          go-version: ${{ matrix.go-version }}
+      # checkout repo
+      - name: Checkout repo
+        uses: actions/checkout@v3
+      # run tests
+      - name: Run tests
+        run: go test ./...
+      # build coverage
+      - name: Build coverage
+        run: ./go_tests.sh && bash <(curl -s https://codecov.io/bash)