deps: update dependency com.google.cloud.bigtable:bigtable-client-core to v1.28.0 (#3871)

[![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.bigtable:bigtable-client-core](https://cloud.google.com/bigtable/) ([source](https://togithub.com/googleapis/java-bigtable-hbase)) | `1.27.1` -> `1.28.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud.bigtable:bigtable-client-core/1.28.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud.bigtable:bigtable-client-core/1.28.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud.bigtable:bigtable-client-core/1.28.0/compatibility-slim/1.27.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud.bigtable:bigtable-client-core/1.28.0/confidence-slim/1.27.1)](https://docs.renovatebot.com/merge-confidence/) |

---

### ⚠ Dependency Lookup Warnings ⚠

Warnings were logged while processing this repo. Please check the Dependency Dashboard for more information.

---

### Release Notes

<details>
<summary>googleapis/java-bigtable-hbase</summary>

### [`v1.28.0`](https://togithub.com/googleapis/java-bigtable-hbase/releases/tag/v1.28.0)

[Compare Source](https://togithub.com/googleapis/java-bigtable-hbase/compare/v1.27.1...v1.28.0)

##### Features

-   relocate bigtable-client-core configuration to bigtable-client-core-config ([3d0c2a5](https://togithub.com/googleapis/java-bigtable-hbase/commit/3d0c2a548e6d4f18f9972d873332f8f0b6db0719))

</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, check this box

---

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-bigtable-hbase).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNC40Mi4wIiwidXBkYXRlZEluVmVyIjoiMzQuNDIuMCJ9-->

Author: renovate-bot

bigtable-test/bigtable-emulator-maven-plugin/src/it/simple-it/pom.xml

@@ -33,7 +33,7 @@ limitations under the License.
     <dependency>
       <groupId>com.google.cloud.bigtable</groupId>
       <artifactId>bigtable-client-core</artifactId>
-      <version>1.27.1</version>
+      <version>1.28.0</version>
     </dependency>
 
     <dependency>