CI: Tweak our code coverage profile behavior

.github/workflows/codecov.yml

@@ -9,7 +9,7 @@ permissions: read-all
 jobs:
   test:
     name: Code Coverage
-    runs-on: gh-hosted-runners-4cores-1
+    runs-on: gh-hosted-runners-16cores-1
 
     steps:
     - name: Check out code

Makefile

@@ -216,7 +216,7 @@ e2e_test: build
 # Run the code coverage tools, compute aggregate.
 unit_test_cover: build dependency_check demo
 	source build.env
-	go test $(VT_GO_PARALLEL) -count=1 -coverprofile=coverage.out ./go/...
+	go test $(VT_GO_PARALLEL) -count=1 -covermode=atomic -coverpkg=./... -coverprofile=coverage.out ./go/...
 	# Handle go tool cover failures due to not handling `//line` directives, which
 	# the goyacc compiler adds to the generated parser in sql.go. See:
 	# https://github.com/golang/go/issues/41222

codecov.yml

@@ -0,0 +1,15 @@
+# https://docs.codecov.com/docs/
+# https://docs.codecov.com/docs/codecov-yaml
+
+codecov:
+  branch: main # Set the default branch
+
+comment: # https://docs.codecov.com/docs/pull-request-comments
+    hide_project_coverage: false
+
+coverage:
+  status: # https://docs.codecov.com/docs/commit-status
+    project:
+      default:
+        informational: true # Don't ever fail the codecov/project or codecove/patch tests
+