cleanup: remove cilium 1.12.10.2

[mainred]

What type of PR is this? /kind cleanup

What this PR does / why we need it: cleanup unused cilium images

Which issue(s) this PR fixes:

Fixes #

Requirements:

• [ ] uses conventional commit messages
• [ ] includes documentation
• [ ] adds unit tests
• [ ] tested upgrade from previous version

Special notes for your reviewer:

Release note:

none

[coveralls]

Pull Request Test Coverage Report for Build 7794220463

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 79.313%

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Totals
Change from base Build 7778692681:	0.0%
Covered Lines:	2285
Relevant Lines:	2881

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💛 - Coveralls