Update Helm release cert-manager to v1.15.3

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
cert-manager (source)	patch	v1.15.2 -> v1.15.3

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Release Notes

cert-manager/cert-manager (cert-manager)

### [`v1.15.3`](https://togithub.com/cert-manager/cert-manager/compare/v1.15.2...v1.15.3) [Compare Source](https://togithub.com/cert-manager/cert-manager/compare/v1.15.2...v1.15.3)

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Configuration

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[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud