deps: update dependency com.google.cloud:google-cloud-containeranalys…

…is-bom to v2.2.15 (#4133)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-containeranalysis-bom](https://togithub.com/googleapis/java-containeranalysis) | `2.2.14` -> `2.2.15` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-containeranalysis-bom/2.2.15/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-containeranalysis-bom/2.2.15/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-containeranalysis-bom/2.2.15/compatibility-slim/2.2.14)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-containeranalysis-bom/2.2.15/confidence-slim/2.2.14)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/java-containeranalysis</summary>

### [`v2.2.15`](https://togithub.com/googleapis/java-containeranalysis/blob/HEAD/CHANGELOG.md#&#8203;2215-httpsgithubcomgoogleapisjava-containeranalysiscomparev2214v2215-2022-04-07)

[Compare Source](https://togithub.com/googleapis/java-containeranalysis/compare/v2.2.14...v2.2.15)

</details>

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pom.xml

@@ -310,7 +310,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-containeranalysis-bom</artifactId>
-        <version>2.2.14</version>
+        <version>2.2.15</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>