deps: update dependency com.google.cloud:google-cloud-video-transcoder-bom to v1.2.0 (#4627)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-video-transcoder-bom](https://togithub.com/googleapis/java-video-transcoder) | `1.1.0` -> `1.2.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-video-transcoder-bom/1.2.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-video-transcoder-bom/1.2.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-video-transcoder-bom/1.2.0/compatibility-slim/1.1.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-video-transcoder-bom/1.2.0/confidence-slim/1.1.0)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/java-video-transcoder</summary>

### [`v1.2.0`](https://togithub.com/googleapis/java-video-transcoder/blob/HEAD/CHANGELOG.md#&#8203;120-httpsgithubcomgoogleapisjava-video-transcodercomparev110v120-2022-07-01)

[Compare Source](https://togithub.com/googleapis/java-video-transcoder/compare/v1.1.0...v1.2.0)

##### Features

-   add support for user labels for job and job template ([#&#8203;352](https://togithub.com/googleapis/java-video-transcoder/issues/352)) ([018d013](https://togithub.com/googleapis/java-video-transcoder/commit/018d0133234c871a77736ce840cfd5052a72ecdc))
-   Enable REST transport for most of Java and Go clients ([#&#8203;354](https://togithub.com/googleapis/java-video-transcoder/issues/354)) ([a211f55](https://togithub.com/googleapis/java-video-transcoder/commit/a211f55bc314ee412e9bc220635404cff879c578))

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.13.0 ([#&#8203;353](https://togithub.com/googleapis/java-video-transcoder/issues/353)) ([95938db](https://togithub.com/googleapis/java-video-transcoder/commit/95938dbcc5cf4e8a0b00935d2aba1c12ed02acfa))

</details>

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Author: renovate-bot

google-cloud-bom/pom.xml

@@ -845,7 +845,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-video-transcoder-bom</artifactId>
-        <version>1.1.0</version>
+        <version>1.2.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>