[DE-554] serverId query param (GET/PUT /_admin/log/level)

[aMahanna]

Introduced in: v3.10.2

The GET /_admin/log/level and PUT /_admin/log/level endpoints support a new query parameter serverId, to forward log level get and set requests to a specific server.

This makes it easier to adjust the log levels in clusters because DB-Servers require JWT authentication whereas Coordinators also support authentication using usernames and passwords.

Introduced: arangodb/docs#1209
Documentation: https://www.arangodb.com/docs/devel/release-notes-api-changes310.html#log-level-api

[codecov-commenter]

Codecov Report

Merging #262 (7a8e328) into main (8b09e07) will increase coverage by 0.36%.
The diff coverage is 91.37%.

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@@            Coverage Diff             @@
##             main     #262      +/-   ##
==========================================
+ Coverage   98.58%   98.95%   +0.36%     
==========================================
  Files          26       26              
  Lines        3899     3937      +38     
==========================================
+ Hits         3844     3896      +52     
+ Misses         55       41      -14     

Impacted Files	Coverage Δ
arango/collection.py	98.48% <50.00%> (+2.00%)	⬆️
arango/client.py	98.30% <75.00%> (-1.70%)	⬇️
arango/database.py	99.59% <80.00%> (-0.28%)	⬇️
arango/aql.py	95.04% <100.00%> (+0.04%)	⬆️
arango/cursor.py	100.00% <100.00%> (ø)
arango/http.py	100.00% <100.00%> (ø)

[aMahanna]

@dothebart will also have to trouble you with a review on this PR when you get the chance