Adding coverage

.github/workflows/coverage.yml

@@ -0,0 +1,29 @@
+---
+name: Coverage
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      TZ: "America/New_York"
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+      - uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+      - name: Run coverage
+        run: go test -coverprofile=coverage.txt -covermode=atomic ./...
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: true
+          files: ./coverage.txt
+          name: codecov-umbrella
+          verbose: true