Changes to Add a new feature flag

added the new SEMVER_GTE enum value to the environments/items/releasePlans/items/milestones/items/strategies/items/constraints/items/operator response property for the response status 200

added the new SEMVER_GTE enum value to the environments/items/strategies/items/constraints/items/operator response property for the response status 200

added the new SEMVER_LTE enum value to the environments/items/releasePlans/items/milestones/items/strategies/items/constraints/items/operator response property for the response status 200

added the new SEMVER_LTE enum value to the environments/items/strategies/items/constraints/items/operator response property for the response status 200

removed the optional property lastSeenAt from the response with the 200 status

removed the optional property strategies from the response with the 200 status

removed the optional property variants from the response with the 200 status

added the new REGEX enum value to the environments/items/releasePlans/items/milestones/items/strategies/items/constraints/items/operator response property for the response status 200

added the new REGEX enum value to the environments/items/strategies/items/constraints/items/operator response property for the response status 200

added the new sunset enum value to the request property type

added the optional property environments/items/releasePlans/items/milestones/items/strategies/items/disabled to the response with the 200 status

added the optional property environments/items/releasePlans/items/safeguards/items/impactMetric/source to the response with the 200 status

added the optional property environments/items/safeguards to the response with the 200 status

response property environments/items/releasePlans/items/milestones/items/strategies/items/strategyName deprecated (stability: stable)

added the required property environments/items/releasePlans/items/milestones/items/strategies/items/name to the response with the 200 status