deps: update dependency com.google.cloud:google-cloud-core to v2.8.19 (…

…#851)

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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) | `2.8.18` -> `2.8.19` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.19/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.19/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.19/compatibility-slim/2.8.18)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.19/confidence-slim/2.8.18)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v2.8.19`](https://togithub.com/googleapis/java-core/blob/HEAD/CHANGELOG.md#&#8203;2819-httpsgithubcomgoogleapisjava-corecomparev2818v2819-2022-09-30)

[Compare Source](https://togithub.com/googleapis/java-core/compare/v2.8.18...v2.8.19)

##### Dependencies

-   Update dependency com.google.api.grpc:proto-google-common-protos to v2.9.5 ([#&#8203;963](https://togithub.com/googleapis/java-core/issues/963)) ([1ee2f9a](https://togithub.com/googleapis/java-core/commit/1ee2f9acd3968b21974a550b6732fe68b18085f4))

</details>

---

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java-accessapproval/samples/install-without-bom/pom.xml

@@ -48,7 +48,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.18</version>
+      <version>2.8.19</version>
       <classifier>tests</classifier>
     </dependency>
   </dependencies>

java-accessapproval/samples/snapshot/pom.xml

@@ -46,7 +46,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.18</version>
+      <version>2.8.19</version>
       <classifier>tests</classifier>
     </dependency>
   </dependencies>

java-accessapproval/samples/snippets/pom.xml

@@ -59,7 +59,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.18</version>
+      <version>2.8.19</version>
       <classifier>tests</classifier>
     </dependency>
   </dependencies>