deps: update dependency com.google.cloud:google-cloud-core to v2.0.3 (#622)

[![WhiteSource Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com) This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | [com.google.cloud:google-cloud-core](https://togithub.com/googleapis/java-core) | `2.0.2` -> `2.0.3` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.0.3/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.0.3/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.0.3/compatibility-slim/2.0.2)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.0.3/confidence-slim/2.0.2)](https://docs.renovatebot.com/merge-confidence/) | *** ### Release Notes <details> <summary>googleapis/java-core</summary> ### [`v2.0.3`](https://togithub.com/googleapis/java-core/blob/master/CHANGELOG.md#​203-httpswwwgithubcomgoogleapisjava-corecomparev202v203-2021-08-10) [Compare Source](https://togithub.com/googleapis/java-core/compare/v2.0.2...v2.0.3) </details> *** ### Configuration 📅 **Schedule**: At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. *** * \[ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box. *** This PR has been generated by [WhiteSource Renovate](https://renovate.whitesourcesoftware.com). View repository job log [here](https://app.renovatebot.com/dashboard#github/googleapis/java-errorreporting).

Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -36,7 +36,7 @@
  <dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>google-cloud-core</artifactId>
- <version>2.0.2</version>
+ <version>2.0.3</version>
  </dependency>
  <dependency>
  <groupId>junit</groupId>

samples/snapshot/pom.xml

@@ -35,7 +35,7 @@
  <dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>google-cloud-core</artifactId>
- <version>2.0.2</version>
+ <version>2.0.3</version>
  </dependency>
  <dependency>
  <groupId>junit</groupId>