deps: update dependency com.google.cloud:google-cloud-datastore-bom to v2.12.0 (#5466)
deps: update dependency com.google.cloud:google-cloud-datastore-bom to v2.12.0 (#5466)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-datastore-bom](https://togithub.com/googleapis/java-datastore) | `2.11.5` -> `2.12.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-datastore-bom/2.12.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-datastore-bom/2.12.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-datastore-bom/2.12.0/compatibility-slim/2.11.5)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-datastore-bom/2.12.0/confidence-slim/2.11.5)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

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

### [`v2.12.0`](https://togithub.com/googleapis/java-datastore/blob/HEAD/CHANGELOG.md#&#8203;2120-httpsgithubcomgoogleapisjava-datastorecomparev2115v2120-2022-10-17)

[Compare Source](https://togithub.com/googleapis/java-datastore/compare/v2.11.5...v2.12.0)

##### Features

-   Count API  ([#&#8203;823](https://togithub.com/googleapis/java-datastore/issues/823)) ([8c22e61](https://togithub.com/googleapis/java-datastore/commit/8c22e61f8a0307a59301259f83a16c8324fa1b6f))

##### Dependencies

-   Update dependency com.google.errorprone:error_prone_core to v2.16 ([#&#8203;872](https://togithub.com/googleapis/java-datastore/issues/872)) ([b2a72ca](https://togithub.com/googleapis/java-datastore/commit/b2a72ca407b1fa168c18b136e73932c8716fbdf6))
-   Update dependency org.easymock:easymock to v5 ([#&#8203;877](https://togithub.com/googleapis/java-datastore/issues/877)) ([ed816e2](https://togithub.com/googleapis/java-datastore/commit/ed816e20b605882a9cf2c637145597fdcd95f324))
-   Update dependency org.graalvm.buildtools:junit-platform-native to v0.9.15 ([#&#8203;878](https://togithub.com/googleapis/java-datastore/issues/878)) ([831a92b](https://togithub.com/googleapis/java-datastore/commit/831a92bdc1d3f81fb44ae8d17cad236a50234ea5))
-   Update dependency org.graalvm.buildtools:native-maven-plugin to v0.9.15 ([#&#8203;879](https://togithub.com/googleapis/java-datastore/issues/879)) ([76a187a](https://togithub.com/googleapis/java-datastore/commit/76a187a48cdc8d40fa233123894a36e11c590ca9))

</details>

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