Add localroles to @available-roles

[jordic]

To be able to use the permission system on gmi, we need to have an endpoint to get declared roles for the running guillotina. It's not enought with globalroles (these are mostly related to container admin), we need also local roles.

[vangheem]

Hi @jordic ! Looks like you have a black error.

If you install the pre-commit hook you'll never see this problem again :)

https://github.com/plone/guillotina#getting-started-with-development

[codecov-io]

Codecov Report

Merging #805 into master will increase coverage by 0.1%. The diff coverage is 100%.

@@           Coverage Diff            @@
##           master    #805     +/-   ##
========================================
+ Coverage      94%     94%   +0.1%     
========================================
  Files         308     308             
  Lines       27795   27802      +7     
========================================
+ Hits        26117   26127     +10     
+ Misses       1678    1675      -3

Impacted Files	Coverage Δ
guillotina/tests/dbusers/test_manage_users.py	100% <100%> (ø)	:arrow_up:
guillotina/contrib/dbusers/services/roles.py	100% <100%> (+22.3%)	:arrow_up:
guillotina/renderers.py	89.7% <0%> (+1.3%)	:arrow_up:

[jordic]

Please, squash!