deps: update dependency com.google.cloud:google-cloud-datastore-bom to v2.10.0 (#4609)

[![Mend 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-datastore-bom](https://togithub.com/googleapis/java-datastore) | `2.9.1` -> `2.10.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-datastore-bom/2.10.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-datastore-bom/2.10.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-datastore-bom/2.10.0/compatibility-slim/2.9.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-datastore-bom/2.10.0/confidence-slim/2.9.1)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

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

### [`v2.10.0`](https://togithub.com/googleapis/java-datastore/blob/HEAD/CHANGELOG.md#&#8203;2100-httpsgithubcomgoogleapisjava-datastorecomparev291v2100-2022-06-30)

##### Features

-   Enable REST transport for admin client ([#&#8203;778](https://togithub.com/googleapis/java-datastore/issues/778)) ([c3290e3](https://togithub.com/googleapis/java-datastore/commit/c3290e3e32a5309abc8e456bfd584c929d23628c))

##### Bug Fixes

-   update gapic-generator-java with mock service generation fixes ([#&#8203;785](https://togithub.com/googleapis/java-datastore/issues/785)) ([8a12f25](https://togithub.com/googleapis/java-datastore/commit/8a12f25ece95429a10c1bcae220a678a7c2e3ff1))

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - 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, click this checkbox.

---

This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://app.renovatebot.com/dashboard#github/googleapis/java-cloud-bom).

Author: renovate-bot

google-cloud-bom/pom.xml

@@ -352,7 +352,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-datastore-bom</artifactId>
-        <version>2.9.1</version>
+        <version>2.10.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>