chore: release 1.7.4 (#165)

🤖 I have created a release \*beep\* \*boop\*
---
### [1.7.4](https://www.github.com/googleapis/nodejs-ai-platform/compare/v1.7.3...v1.7.4) (2021-07-12)


### Bug Fixes

* **deps:** google-gax v2.17.1 ([#164](https://www.github.com/googleapis/nodejs-ai-platform/issues/164)) ([1ec11fc](https://www.github.com/googleapis/nodejs-ai-platform/commit/1ec11fc4fac373ee1a28ac10676fbfe9fc5535d1))
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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).

ai-platform/snippets/package.json

@@ -13,7 +13,7 @@
     "test": "mocha --timeout 1200000 test/*.js"
   },
   "dependencies": {
-    "@google-cloud/aiplatform": "^1.7.3",
+    "@google-cloud/aiplatform": "^1.7.4",
     "@google-cloud/storage": "^5.5.0"
   },
   "devDependencies": {