Enable revoking an Agent token

Proposal

Enable a token to be revoked without removing the database record, so that its attributes (creating user, last used) can be used for auditing purposes.

• Add revoked status - !76505 (merged)
• Allow filtering by status in GraphQL - !77735 (merged)
• GraphQL mutation to revoke a token - !77635 (merged)
• Deprecate existing mutation for deleting tokens - !77837 (merged)
• Database index including status - !77923 (merged)
• Remove old index - !78348 (merged)
• [-] Create activity event on revoke - !78617 (closed) Moved to #350269 (closed)
• Display only non-revoked tokens in UI - !78420 (merged)