ci: add codecov.yml (#788)

Signed-off-by: Anish Ramasekar <anish.ramasekar@gmail.com>

.github/workflows/codecov.yaml

@@ -0,0 +1,24 @@
+name: Codecov
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+permissions: read-all
+
+jobs:
+  codecov:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v3
+        with:
+          go-version: "^1.19"
+      - name: Run tests
+        run: make test
+      - uses: codecov/codecov-action@d9f34f8cd5cb3b3eb79b3e4b5dae3a16df499a70
+        with:
+          files: ./cover.out

codecov.yml

@@ -0,0 +1,11 @@
+coverage:
+  # Commit status https://docs.codecov.io/docs/commit-status are used
+  # to block PR based on coverage threshold.
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 0%
+    patch:
+      default:
+        informational: true