chore(ci): remove codecov until coverage is worth tracking (#328)

Author: bfabio

.github/workflows/tests.yml

@@ -8,7 +8,4 @@ jobs:
       - uses: actions/setup-go@v6
         with:
           go-version: "1.25"
-      - run: go test -race -coverprofile=coverage.txt ./...
-      - uses: codecov/codecov-action@v5
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
+      - run: go test -race ./...