chore(release): 9.0.0 [skip ci]

# [9.0.0](https://gitlab.com/to-be-continuous/helm/compare/8.3.0...9.0.0) (2025-08-13)

* feat(vault)!: enable certificate verification ([ce041223](https://gitlab.com/to-be-continuous/helm/commit/ce041223abd4ea54d299058d83d283b12beb14e0))

### BREAKING CHANGES

* self-signed certificates must be declared in your GitLab DEFAULT_CA_CERTS or with VAULT_CA_CERTS variable