Add build-pr github actions workflow

Signed-off-by: Josh Dolitsky <josh@dolit.ski>

.github/workflows/build-pr.yml

@@ -0,0 +1,26 @@
+name: build-pr
+on:
+  pull_request:
+    branches:
+      - main
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v2
+      - name: Setup Go
+        uses: actions/setup-go@v1
+        with:
+          go-version: '1.16'
+      - name: Install golangci-lint
+        run: |
+          curl -sSL https://github.com/golangci/golangci-lint/releases/download/v$GOLANGCI_LINT_VERSION/golangci-lint-$GOLANGCI_LINT_VERSION-linux-amd64.tar.gz | tar xz
+          sudo mv golangci-lint-$GOLANGCI_LINT_VERSION-linux-amd64/golangci-lint /usr/local/bin/golangci-lint
+          rm -rf golangci-lint-$GOLANGCI_LINT_VERSION-linux-amd64
+        env:
+          GOLANGCI_LINT_VERSION: '1.36.0'
+      - name: Test style
+        run: make test-style
+      - name: Run unit tests
+        run: make test-coverage