chore: release 2.3.5 (#193)

🤖 I have created a release \*beep\* \*boop\*
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### [2.3.5](https://www.github.com/googleapis/nodejs-game-servers/compare/v2.3.4...v2.3.5) (2021-06-29)


### Bug Fixes

* **deps:** google-gax v2.17.0 with mTLS ([#192](https://www.github.com/googleapis/nodejs-game-servers/issues/192)) ([4d37a74](https://www.github.com/googleapis/nodejs-game-servers/commit/4d37a7497ebe77cbfabc5e2bb0ea925e7ac138bb))
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This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).

Author: release-please[bot]

game-servers/snippets/package.json

@@ -13,7 +13,7 @@
     "test": "c8 mocha --timeout 600000 test/*.js"
   },
   "dependencies": {
-    "@google-cloud/game-servers": "^2.3.4"
+    "@google-cloud/game-servers": "^2.3.5"
   },
   "devDependencies": {
     "c8": "^7.2.1",