Bump golang.org/x/net to v0.33.0

[kashifest]

This bump is required to fix GHSA-w32m-9786-jp63
Signed-off-by: Kashif Khan kashif.khan@est.tech

[cert-manager-prow]

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[kashifest]

/assign @inteon

[inteon]

@kashifest thank you for the version bump.
I'll merge this PR, but I think the cmctl binary is not affected by this CVE (govulncheck is not failing: https://github.com/cert-manager/cmctl/actions/runs/12591045529/job/35093566602).

[inteon]

/approve
/lgtm

[cert-manager-prow]

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[kashifest]

@kashifest thank you for the version bump. I'll merge this PR, but I think the cmctl binary is not affected by this CVE (govulncheck is not failing: https://github.com/cert-manager/cmctl/actions/runs/12591045529/job/35093566602).

Thanks a lot. our vulnerability scan tools trivy/grype are showing red flags here. I know its an indirect dependancy but it would be nice to have a patch release since few other bumps have also landed after the September release, wdyt @inteon ?