Remove default value "main" for branch parameter from all Infrahub CTL commands

[BaptisteGi]

Before (env variable is ignored):

➜ export | grep INFRAHUB
INFRAHUB_ADDRESS=http://localhost:8000
INFRAHUB_API_TOKEN=06438eb2-8019-4776-878c-0941b1f1d1ec
➜ infrahubctl schema check schema.yml
 schema 'schema.yml' is Valid!
diff:
    added:
        RandomGeneric:
            added: {}
            changed: {}
            removed: {}
        RandomStuff:
            added: {}
            changed: {}
            removed: {}
    changed: {}
    removed: {}

➜ export INFRAHUB_DEFAULT_BRANCH="doesntexist"
➜ infrahubctl schema check schema.yml
 schema 'schema.yml' is Valid!
diff:
    added:
        RandomGeneric:
            added: {}
            changed: {}
            removed: {}
        RandomStuff:
            added: {}
            changed: {}
            removed: {}
    changed: {}
    removed: {}

After (Take into account the env variable + If there is no default branch set then fallback on default branch set in SDK):

➜ export | grep INFRAHUB
INFRAHUB_ADDRESS=http://localhost:8000
INFRAHUB_API_TOKEN=06438eb2-8019-4776-878c-0941b1f1d1ec
➜ infrahubctl schema check schema.yml
 schema 'schema.yml' is Valid!
diff:
    added:
        RandomGeneric:
            added: {}
            changed: {}
            removed: {}
        RandomStuff:
            added: {}
            changed: {}
            removed: {}
    changed: {}
    removed: {}

➜ export INFRAHUB_DEFAULT_BRANCH="doesntexist"
➜ infrahubctl schema check schema.yml
HTTP communication failure: Client error '400 Bad Request' for url 'http://localhost:8000/api/schema/check?branch=doesntexist'
For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/400 on POST to http://localhost:8000/api/schema/check?branch=doesntexist

resolves: #264

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

@@            Coverage Diff             @@
##           stable     #270      +/-   ##
==========================================
- Coverage   70.36%   70.34%   -0.03%     
==========================================
  Files          82       82              
  Lines        7502     7502              
  Branches     1391     1391              
==========================================
- Hits         5279     5277       -2     
- Misses       1849     1850       +1     
- Partials      374      375       +1     

Flag	Coverage Δ
integration-tests	22.44% <0.00%> (ø)
python-3.10	45.56% <100.00%> (-0.03%)	⬇️
python-3.11	45.56% <100.00%> (-0.03%)	⬇️
python-3.12	45.56% <100.00%> (-0.03%)	⬇️
python-3.13	45.56% <100.00%> (-0.03%)	⬇️
python-3.9	45.56% <100.00%> (-0.03%)	⬇️
python-filler-3.12	23.95% <0.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
infrahub_sdk/ctl/cli_commands.py	58.59% <ø> (ø)
infrahub_sdk/ctl/exporter.py	50.00% <ø> (ø)
infrahub_sdk/ctl/importer.py	57.14% <ø> (ø)
infrahub_sdk/ctl/menu.py	65.38% <ø> (ø)
infrahub_sdk/ctl/object.py	65.38% <ø> (ø)
infrahub_sdk/ctl/repository.py	81.57% <100.00%> (ø)
infrahub_sdk/ctl/schema.py	55.83% <ø> (ø)

... and 1 file with indirect coverage changes

[BeArchiTek]

LGTM, wonder if there isn't more to do on the rest of the SDK as well

[dgarros]

@wvandeun @BaptisteGi are we good to merge this PR ?
I would like to merge #259 and this PR will introduce some conflicts so I would rather merge this one first

Fixed