[release-18.0] Updated golang.org/x/net

[shlomi-noach]

Description

Followup to #15646 and #15639

We update golang.org/x/net to fix a known vulnerability issue.

Related Issue(s)

Checklist

• "Backport to:" labels have been added if this change should be back-ported to release branches
• If this change is to be back-ported to previous releases, a justification is included in the PR description
• Tests were added or are not required
• Did the new or modified tests pass consistently locally and on CI?
• Documentation was added or is not required

Deployment Notes

[vitess-bot]

Review Checklist

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[GrahamCampbell]

Backport to 17.0?

[shlomi-noach]

Backport to 17.0?

17.0 uses go1.20, where the bugfix is not available. We are looking into our options re: 17.0.