deps: update dependency com.google.cloud:google-cloud-core to v2.8.14 (#1291)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-core](https://togithub.com/googleapis/java-core) | `2.8.13` -> `2.8.14` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.14/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.14/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.14/compatibility-slim/2.8.13)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.14/confidence-slim/2.8.13)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

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

### [`v2.8.14`](https://togithub.com/googleapis/java-core/blob/HEAD/CHANGELOG.md#&#8203;2814-httpsgithubcomgoogleapisjava-corecomparev2813v2814-2022-09-20)

[Compare Source](https://togithub.com/googleapis/java-core/compare/v2.8.13...v2.8.14)

##### Dependencies

-   Update dependency com.google.api.grpc:proto-google-common-protos to v2.9.3 ([#&#8203;922](https://togithub.com/googleapis/java-core/issues/922)) ([96b5b4e](https://togithub.com/googleapis/java-core/commit/96b5b4e00004c28cd2d726c2161e94778f6a1c01))

</details>

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Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -80,7 +80,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.13</version>
+      <version>2.8.14</version>
       <classifier>tests</classifier>
     </dependency>
     <dependency>

samples/snapshot/pom.xml

@@ -79,7 +79,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.13</version>
+      <version>2.8.14</version>
       <classifier>tests</classifier>
     </dependency>
     <dependency>

samples/snippets/pom.xml

@@ -94,7 +94,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.13</version>
+      <version>2.8.14</version>
       <classifier>tests</classifier>
     </dependency>
     <!-- [END_EXCLUDE] -->