Catch ASN Parse error more gracefully

[mrchrisadams]

We recently saw a bunch of exceptions when looking up an ASN from IP addresses.

This handles them more gracefully while we investigate what's causing them.

This pull request includes changes to the apps/greencheck module to improve error handling and testing. The most important changes involve adding a new exception type to the imports, updating error handling in the check_for_matching_asn method, and adding a new test case to ensure the new error handling works as expected.

Improvements to error handling:

• apps/greencheck/domain_check.py: Added ASNParseError to the list of imported exceptions.
• apps/greencheck/domain_check.py: Updated the check_for_matching_asn method to handle ASNParseError and log a warning message when this exception occurs.

Enhancements to testing:

• apps/greencheck/tests/test_domain_checker.py: Added a new test case test_asn_from_ip_fails_gracefully_with_bad_asn_lookup to verify that ASNParseError is caught and logged correctly.

[github-actions]

Eco-CI Output:

Label	🖥 avg. CPU utilization [%]	🔋 Total Energy [Joules]	🔌 avg. Power [Watts]	Duration [Seconds]
Total Run (incl. overhead)	13.0222	814.982	2.97	274
checkout	8.58	3.58776	3.59	1
pip install uv wheel	8.7	3.58255	1.79	2
pip install requirements	66.942	32.1157	5.35	6
pytest	11.72	775.696	2.96	262

🌳 CO2 Data:
City: Washington, Lat: 38.7095, Lon: -78.1539
IP: 20.51.206.227
CO₂ from energy is: 0.320287926 g
CO₂ from manufacturing (embodied carbon) is: 0.078175983 g
Carbon Intensity for this location: 393 gCO₂eq/kWh
SCI: 0.398464 gCO₂eq / pipeline run emitted

[github-actions]

Eco-CI Output:

Label	🖥 avg. CPU utilization [%]	🔋 Total Energy [Joules]	🔌 avg. Power [Watts]	Duration [Seconds]
Total Run (incl. overhead)	13.8503	829.267	3.00	276
checkout	8.82	3.589	1.79	2
pip install uv wheel	8.96	3.59166	1.80	2
pip install requirements	69.478	32.8381	5.47	6
pytest	12.4482	789.248	3.00	263

🌳 CO2 Data:
City: Washington, Lat: 38.7095, Lon: -78.1539
IP: 20.55.14.158
CO₂ from energy is: 0.325901931 g
CO₂ from manufacturing (embodied carbon) is: 0.078746611 g
Carbon Intensity for this location: 393 gCO₂eq/kWh
SCI: 0.404649 gCO₂eq / pipeline run emitted