Add contract test to validate the prohibited XRPL addresses for the keys rotation.

[dzmitryhil]

Description

Add contract test to validate the prohibited XRPL addresses for the keys rotation.

Reviewers checklist:

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• Nit-picking should be unblocking. Focus on core issues.

Authors checklist

• Provide a concise and meaningful description
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• Think and try to split the PR to smaller PR if it is big.

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This change is 

[miladz68]

Reviewed 1 of 1 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @wojtek-coreum and @ysv)

[ysv]

Reviewed 1 of 1 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @wojtek-coreum)