fix: exclude e2e workspace from root pnpm test command

The root `pnpm test` runs across all workspaces. The apps/e2e workspace
requires Playwright browsers to be installed before tests can run, but
the unit-test CI job does not install them. Exclude @groombook/e2e from
the root test command so E2E tests only run in the dedicated e2e CI job.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

package.json

@@ -8,7 +8,7 @@
     "build": "pnpm -r build",
     "lint": "pnpm -r lint",
     "typecheck": "pnpm -r typecheck",
-    "test": "pnpm -r test",
+    "test": "pnpm -r --filter='!@groombook/e2e' test",
     "db:migrate": "pnpm --filter @groombook/db migrate",
     "db:seed": "pnpm --filter @groombook/db seed"
   },