[ruff] Stabilize unnecessary-cast-to-int (RUF046)

[ntBre]

Summary

Stabilizes RUF046 and moves its test to the right place. The docs look good.

Test Plan

2 closed newline/whitespace issues from early January and 1 closed issue about really being multiple rules, but otherwise no recent issues or PRs.

[codspeed-hq]

CodSpeed Performance Report

Merging #16649 will degrade performances by 10.81%

_{Comparing brent/ruf046-0.10 (149591e) with micha/ruff-0.10 (b8f1284)}

Summary

❌ 1 regressions
✅ 31 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
❌	red_knot_check_file[incremental]	4.9 ms	5.5 ms	-10.81%

[github-actions]

ruff-ecosystem results

Linter (stable)

ℹ️ ecosystem check detected linter changes. (+16 -0 violations, +0 -0 fixes in 6 projects; 49 projects unchanged)

RasaHQ/rasa (+1 -0 violations, +0 -0 fixes)

+ rasa/shared/core/training_data/loading.py:86:15: RUF046 Value being cast to `int` is already an integer

apache/superset (+2 -0 violations, +0 -0 fixes)

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

+ superset/migrations/versions/2018-07-22_11-59_bebcf3fed1fe_convert_dashboard_v1_positions.py:197:40: RUF046 Value being cast to `int` is already an integer
+ superset/migrations/versions/2018-07-22_11-59_bebcf3fed1fe_convert_dashboard_v1_positions.py:199:29: RUF046 Value being cast to `int` is already an integer

binary-husky/gpt_academic (+1 -0 violations, +0 -0 fixes)

+ crazy_functions/pdf_fns/parse_pdf.py:117:21: RUF046 Value being cast to `int` is already an integer

bokeh/bokeh (+5 -0 violations, +0 -0 fixes)

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

+ examples/server/app/spectrogram/main.py:107:13: RUF046 Value being cast to `int` is already an integer
+ src/bokeh/colors/color.py:338:60: RUF046 Value being cast to `int` is already an integer
+ src/bokeh/palettes.py:1530:27: RUF046 Value being cast to `int` is already an integer
+ src/bokeh/palettes.py:1568:10: RUF046 Value being cast to `int` is already an integer
+ src/bokeh/palettes.py:1569:10: RUF046 Value being cast to `int` is already an integer

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

+ pandas/tests/dtypes/cast/test_maybe_box_native.py:20:10: RUF046 [*] Value being cast to `int` is already an integer

astropy/astropy (+6 -0 violations, +0 -0 fixes)

+ astropy/io/fits/hdu/compressed/tests/test_compressed.py:375:26: RUF046 Value being cast to `int` is already an integer
+ astropy/io/fits/hdu/compressed/utils.py:102:13: RUF046 Value being cast to `int` is already an integer
+ astropy/io/fits/tests/test_image.py:1010:26: RUF046 Value being cast to `int` is already an integer
+ astropy/io/votable/validator/html.py:246:14: RUF046 Value being cast to `int` is already an integer
+ astropy/modeling/_fitting_parallel.py:194:22: RUF046 Value being cast to `int` is already an integer
+ astropy/utils/console.py:365:21: RUF046 Value being cast to `int` is already an integer

Changes by rule (1 rules affected)

code	total	+ violation	- violation	+ fix	- fix
RUF046	16	16	0	0	0

Linter (preview)

✅ ecosystem check detected no linter changes.

[ntBre]

These all look like true positives to me.