Change the default connection timeout to 60s

[wvandeun]

Change the default connection timeout of the Python SDK to 60s.

This is mainly to resolve some issue we see with implementations that implement large datasets on:

• failing to start the Infrahub CI pipeline
• requests in large batches of concurrent mutations timing out
• request to retrieve generator group with large amount of members timing out

This should be revisited as soon as we have more through solutions for the above.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
infrahub_sdk/config.py	0.00%	1 Missing :warning:

Flag	Coverage Δ
python-3.10	43.07% <0.00%> (ø)
python-3.11	43.07% <0.00%> (ø)
python-3.12	43.07% <0.00%> (ø)
python-3.9	43.01% <0.00%> (ø)

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Files with missing lines	Coverage Δ
infrahub_sdk/config.py	20.00% <0.00%> (ø)

... and 3 files with indirect coverage changes