deps: update dependency com.google.api:api-common to v1.10.3 (#437)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.api:api-common](https://togithub.com/googleapis/api-common-java) | `1.10.1` -> `1.10.3` | [![age](https://badges.renovateapi.com/packages/maven/com.google.api:api-common/1.10.3/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.api:api-common/1.10.3/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.api:api-common/1.10.3/compatibility-slim/1.10.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.api:api-common/1.10.3/confidence-slim/1.10.1)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/api-common-java</summary>

### [`v1.10.3`](https://togithub.com/googleapis/api-common-java/blob/master/CHANGELOG.md#&#8203;1103-httpswwwgithubcomgoogleapisapi-common-javacomparev1102v1103-2021-04-22)

[Compare Source](https://togithub.com/googleapis/api-common-java/compare/v1.10.1...v1.10.3)

</details>

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java-core/pom.xml

@@ -152,7 +152,7 @@
     <github.global.server>github</github.global.server>
     <site.installationModule>google-cloud-core-parent</site.installationModule>
     <gax.version>1.63.0</gax.version>
-    <google.api-common.version>1.10.1</google.api-common.version>
+    <google.api-common.version>1.10.3</google.api-common.version>
     <google.common-protos.version>2.1.0</google.common-protos.version>
     <google.iam.version>1.0.12</google.iam.version>
     <google.auth.version>0.25.4</google.auth.version>