chore(deps): update helm release dex to v0.15.2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
dex (source)	helm_release	minor	0.14.1 -> 0.15.2

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Release Notes

dexidp/helm-charts (dex)

### [`v0.15.2`](https://togithub.com/dexidp/helm-charts/releases/tag/dex-0.15.2) [Compare Source](https://togithub.com/dexidp/helm-charts/compare/dex-0.15.1...dex-0.15.2) OpenID Connect (OIDC) identity and OAuth 2.0 provider with pluggable connectors. ### [`v0.15.1`](https://togithub.com/dexidp/helm-charts/releases/tag/dex-0.15.1) [Compare Source](https://togithub.com/dexidp/helm-charts/compare/dex-0.15.0...dex-0.15.1) OpenID Connect (OIDC) identity and OAuth 2.0 provider with pluggable connectors. ### [`v0.15.0`](https://togithub.com/dexidp/helm-charts/releases/tag/dex-0.15.0) [Compare Source](https://togithub.com/dexidp/helm-charts/compare/dex-0.14.3...dex-0.15.0) OpenID Connect (OIDC) identity and OAuth 2.0 provider with pluggable connectors. ### [`v0.14.3`](https://togithub.com/dexidp/helm-charts/releases/tag/dex-0.14.3) [Compare Source](https://togithub.com/dexidp/helm-charts/compare/dex-0.14.2...dex-0.14.3) OpenID Connect (OIDC) identity and OAuth 2.0 provider with pluggable connectors. ### [`v0.14.2`](https://togithub.com/dexidp/helm-charts/releases/tag/dex-0.14.2) [Compare Source](https://togithub.com/dexidp/helm-charts/compare/dex-0.14.1...dex-0.14.2) OpenID Connect (OIDC) identity and OAuth 2.0 provider with pluggable connectors.

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