Changes to List Managed Identities

the response property managedIdentities/items/config/environment became nullable for the status 200

the response property managedIdentities/items/config/nextflowConfig became nullable for the status 200

the response property managedIdentities/items/config/postRunScript became nullable for the status 200

the response property managedIdentities/items/config/preRunScript became nullable for the status 200

endpoint added