chore: fix lint failures (#2455)

Source-Link: googleapis/synthtool@36ebc33
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest@sha256:1c50961ec998cd24968d5b2628e8d88a36b612ea881e71bfd171c93cc9d08b9e

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]

handwritten/firestore/.github/.OwlBot.lock.yaml

@@ -13,4 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest
-  digest: sha256:84adf917cad8f48c61227febebae7af619882d7c8863d6ab6290a77d45a372cf
+  digest: sha256:1c50961ec998cd24968d5b2628e8d88a36b612ea881e71bfd171c93cc9d08b9e
+# created: 2025-12-02T19:51:56.208302619Z

handwritten/firestore/README.md

@@ -5,7 +5,7 @@
 # [Cloud Firestore: Node.js Client](https://github.com/googleapis/nodejs-firestore)
 
 [![release level](https://img.shields.io/badge/release%20level-stable-brightgreen.svg?style=flat)](https://cloud.google.com/terms/launch-stages)
-[![npm version](https://img.shields.io/npm/v/@google-cloud/firestore.svg)](https://www.npmjs.org/package/@google-cloud/firestore)
+[![npm version](https://img.shields.io/npm/v/@google-cloud/firestore.svg)](https://www.npmjs.com/package/@google-cloud/firestore)