Bump @grpc/grpc-js from 1.9.14 to 1.9.15

Bumps [@grpc/grpc-js](https://github.com/grpc/grpc-node) from 1.9.14 to 1.9.15.
- [Release notes](https://github.com/grpc/grpc-node/releases)
- [Commits](https://github.com/grpc/grpc-node/compare/@grpc/[email protected]...@grpc/[email protected])

---
updated-dependencies:
- dependency-name: "@grpc/grpc-js"
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

yarn.lock

@@ -514,12 +514,12 @@ __metadata:
   linkType: hard
 
 "@grpc/grpc-js@npm:~1.9.6":
-  version: 1.9.14
-  resolution: "@grpc/grpc-js@npm:1.9.14"
+  version: 1.9.15
+  resolution: "@grpc/grpc-js@npm:1.9.15"
   dependencies:
     "@grpc/proto-loader": ^0.7.8
     "@types/node": ">=12.12.47"
-  checksum: 1e0821876fc55fa1d71a674e65db6227ca398f6ff77735bd44d8d4a554fa97dcddd06e7844c3d7da37350feafd824ec88af04f0ab0e0c2e0bc8f753939935240
+  checksum: 5b0f84052ad6610fff7919cae99c79c1182b01d2f529f6e64e1189e902a90abcb6f828a119df8e4abcdab8fa1ac5d5975fe200220293a1ced126c536f3bc1374
   languageName: node
   linkType: hard