feat(#2183): add support for CIP-129 governance identifiers

[MSzalowski]

List of changes

• add support for CIP-129 governance identifiers

Checklist

• related issue
• [x] My changes generate no new warnings
• [x] My code follows the style guidelines of this project
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the changelog
• [x] I have added tests that prove my fix is effective or that my feature works

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@MSzalowski This PR is in the tag: develop-9913448c1949753c76e5093b8d1354c18b9de011 , for govtool-frontend service

[github-actions[bot]]

@MSzalowski This PR is in the tag: develop-9913448c1949753c76e5093b8d1354c18b9de011 , for govtool-metadata-validation service

[github-actions[bot]]

@MSzalowski This PR is in the tag: develop-9913448c1949753c76e5093b8d1354c18b9de011 , for govtool-backend service