Bump golang.org/x/net to v0.53.0 to fix GO-2026-4918 (release-1.34)

[howard-junec]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

Bumps golang.org/x/net to v0.53.0 to fix govulncheck CI failure caused by GO-2026-4918 (infinite loop in HTTP/2 transport).

Which issue(s) this PR fixes:

Fixes govulncheck CI failure on release-1.34 branch.

Special notes for your reviewer:

Also bumps transitive dependencies (golang.org/x/crypto, mod, sync, sys, term, text, tools) as required by go mod tidy.

Does this PR introduce a user-facing change?:

None

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[kmala]

/ok-to-test

[kmala]

/release-note-none
/lgtm
/approve

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