fix: CVE-2025-61726 - upgrade go version to >1.25.5

[infernus01]

Changes

Scope of this fix is to address CVE-2025-61726 by upgrading go version above 1.25.5

/kind bug

Submitter Checklist

These are the criteria that every PR should meet, please check them off as you
review them:

• Includes tests (if functionality changed/added)
• Run the code checkers with make check
• Regenerate the manpages, docs and go formatting with make generated
• Commit messages follow commit message best practices

See the contribution guide
for more details.

Release Notes

[chmouel]

there is no make vendor or something to be done here as well?

[infernus01]

I did that - go mod tidy , then go mod vendor, but got nothing from them.

[chmouel]

/lgtm

[chmouel]

/ok-to-test

[pratap0007]

/lgtm
/approve

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