Add support for Rocky Linux 10 in OSP

[rajaSahil]

What this PR does / why we need it: Added support for Rocky Linux 10 in OSP. This version introduces a few key changes:

• Docker has not yet released yum repository configurations for Rocky 10, so manual handling is required.
• The legacy ifcfg networking scripts are no longer supported.
• The ip_tables kernel module is not available, nftables is the default replacement.

Which issue(s) this PR fixes:

Fixes #470

What type of PR is this?

/kind feature

Special notes for your reviewer:

Does this PR introduce a user-facing change? Then add your Release Note here:

Add support for rocky linux 10

Documentation:

NONE

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[rajaSahil]

/assign @kron4eg

[kron4eg]

/hold

[kron4eg]

This is quite a leap of faith. I'd say we need a new, dedicated OSP for rocky 10.

[kron4eg]

Let's have this PR open until all the major clouds have rocky and then return to discussion what to be done.