Changes to Delete an immutable Skill resource.

added the non-success response with the status 409

changed the pattern of the path request parameter skillName from ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$ to ^[a-z0-9]+(-[a-z0-9]+)*$

for the path request parameter skillName, the maxLength was increased from 32 to 63

the endpoint scheme security GatewayBearer was added to the API

added the new optional header request parameter X-AgentZ-Workspace-ID

endpoint added