When creating webhook using function_alias, the function id
and function version should be updated dynamically. For example,
a function alias A1 is created for function_1 and version 1,
a job is created using A1.
When the user updates A1 with function 1 and version 2, the webhook
should pick up the new version automatically.
For function execution, the execution has to make sure if an alias
is provided then the function id and the function version should be
the same as the one from the alias.
Change-Id: I17320a2a4f55cda8884de928c69ceba366c37f2e
Story: 2006337
Task: 36085
9696b34288