chore: release 2.3.4 (#187)

🤖 I have created a release \*beep\* \*boop\*
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### [2.3.4](https://www.github.com/googleapis/nodejs-game-servers/compare/v2.3.3...v2.3.4) (2021-06-22)


### Bug Fixes

* make request optional in all cases ([#186](https://www.github.com/googleapis/nodejs-game-servers/issues/186)) ([99424ec](https://www.github.com/googleapis/nodejs-game-servers/commit/99424ecd0f87341bd4814cdbe092d2820c9a78d7))
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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": "^2.3.3"
+    "@google-cloud/game-servers": "^2.3.4"
   },
   "devDependencies": {
     "c8": "^7.2.1",