deps: update google.core.version to v2.8.15 (#807)

[![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:google-cloud-core](https://togithub.com/googleapis/java-core) | `2.8.14` -> `2.8.15` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.15/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.15/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.15/compatibility-slim/2.8.14)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.15/confidence-slim/2.8.14)](https://docs.renovatebot.com/merge-confidence/) | | [com.google.cloud:google-cloud-core-bom](https://togithub.com/googleapis/java-core) | `2.8.14` -> `2.8.15` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core-bom/2.8.15/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core-bom/2.8.15/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core-bom/2.8.15/compatibility-slim/2.8.14)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core-bom/2.8.15/confidence-slim/2.8.14)](https://docs.renovatebot.com/merge-confidence/) | --- ### Release Notes <details> <summary>googleapis/java-core</summary> ### [`v2.8.15`](https://togithub.com/googleapis/java-core/blob/HEAD/CHANGELOG.md#&#8203;2815-httpsgithubcomgoogleapisjava-corecomparev2814v2815-2022-09-23) [Compare Source](https://togithub.com/googleapis/java-core/compare/v2.8.14...v2.8.15) ##### Dependencies - Update dependency com.google.api.grpc:proto-google-iam-v1 to v1.6.0 ([#&#8203;925](https://togithub.com/googleapis/java-core/issues/925)) ([a5475c5](https://togithub.com/googleapis/java-core/commit/a5475c5333ca97392c9e64a883826ea1bd976a01)) - Update dependency com.google.api.grpc:proto-google-iam-v1 to v1.6.1 ([#&#8203;926](https://togithub.com/googleapis/java-core/issues/926)) ([3bc96fb](https://togithub.com/googleapis/java-core/commit/3bc96fbba4907d4ac3d24915870132fed596c0d3)) </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 these updates again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, click this checkbox. --- 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-shared-dependencies). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzMi4yMDEuMyIsInVwZGF0ZWRJblZlciI6IjMyLjIwMi40In0=-->

Author: renovate-bot

first-party-dependencies/pom.xml

@@ -63,7 +63,7 @@
  <protobuf.version>3.21.6</protobuf.version>
  <google.api-common.version>2.2.1</google.api-common.version>
  <google.common-protos.version>2.9.3</google.common-protos.version>
- <google.core.version>2.8.14</google.core.version>
+ <google.core.version>2.8.15</google.core.version>
  <google.auth.version>1.11.0</google.auth.version>
  <google.http-client.version>1.42.2</google.http-client.version>
  <google.oauth-client.version>1.34.1</google.oauth-client.version>