Update cert-manager/cert-manager from 1.12.8 to 1.12.9

The following dependencies have been updated by deps:

• cert-manager/cert-manager from 1.12.8 to 1.12.9

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v1.12.9 Changes

Bug or Regression

• Allow cert-manager.io/allow-direct-injection in annotations (#6811, @jetstack-bot)
• BUGFIX: JKS and PKCS12 stores now contain the full set of CAs specified by an issuer (#6813, @inteon)
• BUGFIX: fix race condition due to registering and using global runtime.Scheme variables (#6833, @inteon)

Other (Cleanup or Flake)

• Bump base images to the latest version. (#6843, @jetstack-bot)
• Upgrade go to 1.21.8: fixes CVE-2024-24783 (#6826, @jetstack-bot)
• Upgrade google.golang.org/protobuf: fixing GO-2024-2611 (#6830, @inteon)