[ruff] Implement invalid-assert-message-literal-argument (RUF040)

[Lokejoke]

Summary

This PR implements new rule discussed here.
In short, it searches for assert messages which were unintentionally used as a expression to be matched against.

Test Plan

cargo test and review of ruff-ecosystem

[github-actions]

ruff-ecosystem results

Linter (stable)

✅ ecosystem check detected no linter changes.

Linter (preview)

ℹ️ ecosystem check detected linter changes. (+11 -0 violations, +0 -0 fixes in 4 projects; 51 projects unchanged)

apache/airflow (+8 -0 violations, +0 -0 fixes)

ruff check --no-cache --exit-zero --ignore RUF9 --output-format concise --preview --select ALL

+ providers/tests/amazon/aws/hooks/test_base_aws.py:1077:24: RUF040 Non-string literal used as assert message
+ providers/tests/edge/worker_api/routes/test_rpc_api.py:219:35: RUF040 Non-string literal used as assert message
+ providers/tests/google/cloud/sensors/test_gcs.py:201:30: RUF040 Non-string literal used as assert message
+ providers/tests/google/cloud/sensors/test_gcs.py:86:30: RUF040 Non-string literal used as assert message
+ providers/tests/google/common/hooks/test_base_google.py:84:24: RUF040 Non-string literal used as assert message
+ tests/api_connexion/endpoints/test_task_instance_endpoint.py:1370:38: RUF040 Non-string literal used as assert message
+ tests/api_fastapi/core_api/routes/public/test_task_instances.py:1973:38: RUF040 Non-string literal used as assert message
+ tests/api_internal/endpoints/test_rpc_api_endpoint.py:173:31: RUF040 Non-string literal used as assert message

bokeh/bokeh (+1 -0 violations, +0 -0 fixes)

ruff check --no-cache --exit-zero --ignore RUF9 --output-format concise --preview --select ALL

+ tests/unit/bokeh/io/test_state.py:47:43: RUF040 Non-string literal used as assert message

pandas-dev/pandas (+1 -0 violations, +0 -0 fixes)

ruff check --no-cache --exit-zero --ignore RUF9 --output-format concise --preview

+ pandas/tests/series/accessors/test_cat_accessor.py:43:37: RUF040 Non-string literal used as assert message

pytest-dev/pytest (+1 -0 violations, +0 -0 fixes)

ruff check --no-cache --exit-zero --ignore RUF9 --output-format concise --preview

+ testing/_py/test_local.py:218:26: RUF040 Non-string literal used as assert message

Changes by rule (1 rules affected)

code	total	+ violation	- violation	+ fix	- fix
RUF040	11	11	0	0	0

[dylwil3]

This is a really clever rule idea, and the ecosystem checks all look like genuine bugs - great job! (May be worth filing some issues in those repos, actually 😄 )

I just have a quibble with the name of the rule (see the comment below), and a question about bytes literals, but otherwise this looks awesome. Thank you!