deps: update google.core.version to v1.94.8 (#342)

[![WhiteSource 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-core](https://togithub.com/googleapis/java-core) | `1.94.7` -> `1.94.8` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/1.94.8/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/1.94.8/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/1.94.8/compatibility-slim/1.94.7)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/1.94.8/confidence-slim/1.94.7)](https://docs.renovatebot.com/merge-confidence/) |
| [com.google.cloud:google-cloud-core-bom](https://togithub.com/googleapis/java-core) | `1.94.7` -> `1.94.8` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core-bom/1.94.8/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core-bom/1.94.8/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core-bom/1.94.8/compatibility-slim/1.94.7)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core-bom/1.94.8/confidence-slim/1.94.7)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

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

### [`v1.94.8`](https://togithub.com/googleapis/java-core/blob/master/CHANGELOG.md#&#8203;1948-httpswwwgithubcomgoogleapisjava-corecomparev1947v1948-2021-04-23)

[Compare Source](https://togithub.com/googleapis/java-core/compare/v1.94.7...v1.94.8)

</details>

---

### Configuration

:date: **Schedule**: At any time (no schedule defined).

:vertical_traffic_light: **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

:recycle: **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

:no_bell: **Ignore**: Close this PR and you won't be reminded about these updates again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box.

---

This PR has been generated by [WhiteSource Renovate](https://renovate.whitesourcesoftware.com). View repository job log [here](https://app.renovatebot.com/dashboard#github/googleapis/java-shared-dependencies).

java-shared-dependencies/pom.xml

@@ -61,7 +61,7 @@
     <protobuf.version>3.15.8</protobuf.version>
     <google.api-common.version>1.10.3</google.api-common.version>
     <google.common-protos.version>2.1.0</google.common-protos.version>
-    <google.core.version>1.94.7</google.core.version>
+    <google.core.version>1.94.8</google.core.version>
     <google.auth.version>0.25.5</google.auth.version>
     <google.http-client.version>1.39.2</google.http-client.version>
     <google.api-client.version>1.31.4</google.api-client.version>