[SQSERVICES-253] Support provisioning role information with scim PATCH

[battermann]

https://wearezeta.atlassian.net/browse/SQSERVICES-253

support for PATCH

Checklist

• Add a new entry in an appropriate subdirectory of changelog.d
• Read and follow the PR guidelines

[fisx]

looks good!

i have two nit-picks, but they can either be done in a future release or forgotten entirely.

[fisx]

i suggested a different way to write this, but this time i have another suggestion :-)

Suggested change

	let testWithInitialRole r = forM_ [minBound .. maxBound] (testPatchRoles brig replaceOrAdd tid owner tok r)
	forM_ [minBound .. maxBound] testWithInitialRole
	let values = [[], ["member", "admin"], ["notarole"]] <> (:[]) <$> [minBound .. maxBound]
	testWithInitialRole r = forM_ values (testPatchRoles brig replaceOrAdd tid owner tok r)
	forM_ values testWithInitialRole

(this would require to take [Role] instead of Role in initial and target below.)

[fisx]

maybe this trick could also be used to simplify the tests for POST, PUT?

[battermann]

i suggested a different way to write this, but this time i have another suggestion :-)

I know, but that didn't compile, and I tried to come as close as possible.