Investigator sending advise requests to user-api

[KPostOffice]

Is your feature request related to a problem? Please describe.
Recent changes to Kebechet have caused optimizations to only schedule advises when specifically requested, this means that internal triggers scheduling Kebechet will no longer cause user-api requests. We need to move these requests further up the pipeline to investigator so that we can handle new CVE issues.

Describe the solution you'd like
Use Thamos to send authenticated requests to UserAPI directly from investigator

Describe alternatives you've considered
There may be an option for sending advise schedule methods directly, but this requires bypassing caching which exists on user-api. It would also require duplicating the code in user-api which stores the software stacks for later retrieval by adviser.

[KPostOffice]

/assign @KPostOffice
/life-cycle active

[KPostOffice]

/lifecycle active

[goern]

/priority critical-urgent

[sesheta]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[sesheta]

Stale issues rot after 30d of inactivity.
Mark the issue as fresh with /remove-lifecycle rotten.
Rotten issues close after an additional 30d of inactivity.

If this issue is safe to close now please do so with /close.

/lifecycle rotten

[codificat]

I believe this is still an outstanding request (please correct if not), so
/remove-lifecycle rotten

[sesheta]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[harshad16]

/remove-lifecycle stale
/lifecycle frozen