deps: update dependency com.google.cloud:google-cloud-core to v2.8.6 (#955)

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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) | `2.8.1` -> `2.8.6` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.6/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.6/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.6/compatibility-slim/2.8.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.6/confidence-slim/2.8.1)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v2.8.6`](https://togithub.com/googleapis/java-core/blob/HEAD/CHANGELOG.md#&#8203;286-httpsgithubcomgoogleapisjava-corecomparev285v286-2022-08-02)

[Compare Source](https://togithub.com/googleapis/java-core/compare/v2.8.5...v2.8.6)

##### Dependencies

-   update dependency com.google.api:gax-bom to v2.18.7 ([#&#8203;890](https://togithub.com/googleapis/java-core/issues/890)) ([c67bed5](https://togithub.com/googleapis/java-core/commit/c67bed5281b458e78780cdd918235b5d073917c7))
-   update dependency com.google.code.gson:gson to v2.9.1 ([#&#8203;888](https://togithub.com/googleapis/java-core/issues/888)) ([7b799c6](https://togithub.com/googleapis/java-core/commit/7b799c66f4aaf057242e9a231b920e49a7c964e9))

### [`v2.8.5`](https://togithub.com/googleapis/java-core/blob/HEAD/CHANGELOG.md#&#8203;285-httpsgithubcomgoogleapisjava-corecomparev284v285-2022-07-29)

[Compare Source](https://togithub.com/googleapis/java-core/compare/v2.8.4...v2.8.5)

##### Dependencies

-   update dependency com.google.api:gax-bom to v2.18.6 ([#&#8203;885](https://togithub.com/googleapis/java-core/issues/885)) ([7fa028c](https://togithub.com/googleapis/java-core/commit/7fa028c0e78bd21583c8687582da24834bd54449))

### [`v2.8.4`](https://togithub.com/googleapis/java-core/blob/HEAD/CHANGELOG.md#&#8203;284-httpsgithubcomgoogleapisjava-corecomparev283v284-2022-07-27)

[Compare Source](https://togithub.com/googleapis/java-core/compare/v2.8.3...v2.8.4)

##### Documentation

-   update javadocs for ReadChannel#limit to be more clear ([#&#8203;880](https://togithub.com/googleapis/java-core/issues/880)) ([c7de4e2](https://togithub.com/googleapis/java-core/commit/c7de4e2871d6a32cacc7aab69d826f3afd6301ef))

##### Dependencies

-   Update google-cloud-shared-config to v1.5.3 ([#&#8203;882](https://togithub.com/googleapis/java-core/issues/882)) ([aabb0b4](https://togithub.com/googleapis/java-core/commit/aabb0b42076f8a02e7b31d604add567fa909df6c))

### [`v2.8.3`](https://togithub.com/googleapis/java-core/blob/HEAD/CHANGELOG.md#&#8203;283-httpsgithubcomgoogleapisjava-corecomparev282v283-2022-07-26)

[Compare Source](https://togithub.com/googleapis/java-core/compare/v2.8.1...v2.8.3)

##### Dependencies

-   update dependency com.google.api-client:google-api-client-bom to v2 ([#&#8203;868](https://togithub.com/googleapis/java-core/issues/868)) ([e117c40](https://togithub.com/googleapis/java-core/commit/e117c40f31acf16a45bdbeeb727ba26d80eb6a51))
-   update dependency com.google.api:gax-bom to v2.18.4 ([#&#8203;864](https://togithub.com/googleapis/java-core/issues/864)) ([bd40b1d](https://togithub.com/googleapis/java-core/commit/bd40b1d1b36cdcfa833047609e2488594b112be1))
-   update dependency com.google.api:gax-bom to v2.18.5 ([#&#8203;876](https://togithub.com/googleapis/java-core/issues/876)) ([d8dc7fb](https://togithub.com/googleapis/java-core/commit/d8dc7fbdb0d65e493ca4154658c63e80d89ab600))
-   update dependency com.google.api.grpc:proto-google-common-protos to v2.9.2 ([#&#8203;870](https://togithub.com/googleapis/java-core/issues/870)) ([7e961e9](https://togithub.com/googleapis/java-core/commit/7e961e945d5e049a1a1bb2592e9c155b5937e33b))
-   update dependency com.google.api.grpc:proto-google-iam-v1 to v1.5.2 ([#&#8203;865](https://togithub.com/googleapis/java-core/issues/865)) ([fe7b974](https://togithub.com/googleapis/java-core/commit/fe7b974a0eae82711ca96edf412944309d5d6202))
-   update dependency com.google.auth:google-auth-library-bom to v1.8.1 ([#&#8203;856](https://togithub.com/googleapis/java-core/issues/856)) ([92df5d3](https://togithub.com/googleapis/java-core/commit/92df5d3c248214970d38432e8c264d151298d1e6))
-   update dependency com.google.http-client:google-http-client-bom to v1.42.2 ([#&#8203;871](https://togithub.com/googleapis/java-core/issues/871)) ([1972e8e](https://togithub.com/googleapis/java-core/commit/1972e8e45e11597e56609aa5fcd44e61958d5857))
-   update dependency com.google.protobuf:protobuf-bom to v3.21.3 ([#&#8203;874](https://togithub.com/googleapis/java-core/issues/874)) ([1e18977](https://togithub.com/googleapis/java-core/commit/1e18977820ac766157156fb6246bd318d207971c))
-   update dependency com.google.protobuf:protobuf-bom to v3.21.4 ([#&#8203;877](https://togithub.com/googleapis/java-core/issues/877)) ([d12fb5e](https://togithub.com/googleapis/java-core/commit/d12fb5e4eb8aa42015df84abf31f56408c8b64d8))
-   update dependency io.grpc:grpc-bom to v1.48.0 ([#&#8203;873](https://togithub.com/googleapis/java-core/issues/873)) ([a45b075](https://togithub.com/googleapis/java-core/commit/a45b075e414049550c51ff0097337e45128fc499))

</details>

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Author: renovate-bot

vision/snippets/pom.xml

@@ -66,7 +66,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.1</version>
+      <version>2.8.6</version>
       <scope>test</scope>
       <classifier>tests</classifier>
     </dependency>