chore(deps): pin dependencies

[renovate]

This PR contains the following updates:

Package	Update	Change
gcr.io/cloud-builders/git	pinDigest	→ 3221211
nginx	pinDigest	→ c881927

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Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

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[cert-manager-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[cert-manager-prow]

Hi @renovate[bot]. Thanks for your PR.

I'm waiting for a cert-manager member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[cert-manager-prow]

@renovate[bot]: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cert-manager-release-verify	c13cf51	link	true	/test pull-cert-manager-release-verify

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.