Update gcr.io/kaniko-project/executor Docker tag to v1.15.0

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
gcr.io/kaniko-project/executor	minor	v1.14.0 -> v1.15.0

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Release Notes

GoogleContainerTools/kaniko (gcr.io/kaniko-project/executor)

### [`v1.15.0`](https://togithub.com/GoogleContainerTools/kaniko/blob/HEAD/CHANGELOG.md#v1150-Release-2023-08-29) [Compare Source](https://togithub.com/GoogleContainerTools/kaniko/compare/v1.14.0...v1.15.0) The executor images in this release are: gcr.io/kaniko-project/executor:v1.15.0 gcr.io/kaniko-project/executor:latest The debug images are available at: gcr.io/kaniko-project/executor:debug gcr.io/kaniko-project/executor:v1.15.0-debug The slim executor images which don't contain any authentication binaries are available at: gcr.io/kaniko-project/executor:slim gcr.io/kaniko-project/executor:v1.15.0-slim - Ensure New Layers Match Image Media Type [#​2700](https://togithub.com/GoogleContainerTools/kaniko/pull/2700) - chore(deps): bump github.com/aws/aws-sdk-go-v2/feature/s3/manager from 1.11.79 to 1.11.81 [#​2702](https://togithub.com/GoogleContainerTools/kaniko/pull/2702) - chore(deps): bump github.com/aws/aws-sdk-go-v2/service/s3 from 1.38.4 to 1.38.5 [#​2706](https://togithub.com/GoogleContainerTools/kaniko/pull/2706) - chore(deps): bump google.golang.org/api from 0.136.0 to 0.138.0 [#​2704](https://togithub.com/GoogleContainerTools/kaniko/pull/2704) - chore(deps): bump github.com/aws/aws-sdk-go-v2 from 1.20.3 to 1.21.0 [#​2703](https://togithub.com/GoogleContainerTools/kaniko/pull/2703) - docs: fix --use-new-run typo [#​2698](https://togithub.com/GoogleContainerTools/kaniko/pull/2698) - docs: add more information regarding --use-new-run [#​2687](https://togithub.com/GoogleContainerTools/kaniko/pull/2687) - chore(deps): bump cloud.google.com/go/storage from 1.31.0 to 1.32.0 [#​2692](https://togithub.com/GoogleContainerTools/kaniko/pull/2692) - chore(deps): bump github.com/aws/aws-sdk-go-v2/feature/s3/manager from 1.11.77 to 1.11.79 [#​2690](https://togithub.com/GoogleContainerTools/kaniko/pull/2690) - Fix: Change condition for the behaviour when --no-push=true without setting --destinations [#​2676](https://togithub.com/GoogleContainerTools/kaniko/pull/2676) Huge thank you for this release towards our contributors: - Aaron Prindle - dependabot\[bot] - JeromeJu - Logan Price

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