chore(weave): Update line length to 120

[andrewtruong]

Updates the line-length setting to 120, which makes nested expressions easier to read

[wandbot-3000]

Preview this PR with FeatureBee: https://beta.wandb.ai/?betaVersion=e27ec6723c5b8444f83809746c59d1a16ad9f174

[codecov-commenter]

Codecov Report

❌ Patch coverage is 40.75829% with 375 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...ave/integrations/openai_realtime/state_exporter.py	0.00%	27 Missing ⚠️
weave/integrations/llamaindex/llamaindex.py	0.00%	18 Missing ⚠️
weave/integrations/openai/openai_sdk.py	5.88%	16 Missing ⚠️
weave/integrations/openai_realtime/connection.py	0.00%	15 Missing ⚠️
weave/integrations/autogen/autogen_sdk.py	0.00%	14 Missing ⚠️
weave/integrations/dspy/dspy_sdk.py	0.00%	10 Missing ⚠️
weave/integrations/cohere/cohere_sdk.py	0.00%	9 Missing ⚠️
weave/integrations/openai_realtime/models.py	0.00%	9 Missing ⚠️
weave/trace/display/grid.py	35.71%	9 Missing ⚠️
weave/integrations/anthropic/anthropic_sdk.py	0.00%	8 Missing ⚠️
... and 86 more

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