fix(rust/rbac-registration): Validate witness for stake address and payment address URIs in certificate

[bkioshn]

Description

Currently URIs in certificate are only validated for role0 with stake address URI.

Related Issue(s)

Closes #506

Description of Changes

This should be changed to

• If role0, certificate stake address URI must exist at least 1, and if exist, it should be witnessed
• All roles, if there is certificate address URI (stake address or payment address), all of them should be witnessed.

Breaking Changes

• Any registration that violate the statement mention above, will become invalid
• role_0_stake_addresses is replaced
• stake_addresses in CIP134 become general - change to role_stake_addresses and stake_addresses

Please confirm the following checks

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream module

[github-actions]

✅ Test Report | ${\color{lightgreen}Pass: 428/428}$ | ${\color{red}Fail: 0/428}$ |