ci: add src/testing to coverage ignore patterns (#1800)

* ci: add src/testing to coverage ignore patterns

* Add newline at end of bunfig.toml

* Rename pathIgnorePatterns to coveragePathIgnorePatterns

Author: tejaskash

bunfig.toml

@@ -3,3 +3,6 @@
 # frames are plain text (no ANSI color codes) regardless of whether stdout is a
 # TTY, keeping frame assertions deterministic across `bun test` and piped runs.
 preload = ["./src/testing/setup.ts"]
+coveragePathIgnorePatterns = [
+  "src/testing/**"
+]