🔧 Remove dead per-file-ignores entries for removed Python 3.9 tutorials

The per-file-ignores in pyproject.toml still referenced docs_src/**/*_py39.py
files that were removed in #14931, plus one stray
docs_src/dependencies/tutorial009_py310.py entry whose file was removed in
#14559. Drop the orphaned entries so the section only lists ignores that
actually apply.

No behavior change — ruff silently skipped these entries because the files
do not exist.

pyproject.toml

@@ -279,41 +279,21 @@ ignore = [
 [tool.ruff.lint.per-file-ignores]
 "__init__.py" = ["F401"]
 "docs_src/custom_request_and_route/tutorial002_an_py310.py" = ["B904"]
-"docs_src/custom_request_and_route/tutorial002_an_py39.py" = ["B904"]
 "docs_src/custom_request_and_route/tutorial002_py310.py" = ["B904"]
-"docs_src/custom_request_and_route/tutorial002_py39.py" = ["B904"]
 "docs_src/custom_response/tutorial007_py310.py" = ["B007"]
-"docs_src/custom_response/tutorial007_py39.py" = ["B007"]
-"docs_src/dataclasses/tutorial003_py39.py" = ["I001"]
 "docs_src/dependencies/tutorial007_py310.py" = ["F821"]
-"docs_src/dependencies/tutorial007_py39.py" = ["F821"]
 "docs_src/dependencies/tutorial008_an_py310.py" = ["F821"]
-"docs_src/dependencies/tutorial008_an_py39.py" = ["F821"]
 "docs_src/dependencies/tutorial008_py310.py" = ["F821"]
-"docs_src/dependencies/tutorial008_py39.py" = ["F821"]
 "docs_src/dependencies/tutorial008b_an_py310.py" = ["B904"]
-"docs_src/dependencies/tutorial008b_an_py39.py" = ["B904"]
 "docs_src/dependencies/tutorial008b_py310.py" = ["B904"]
-"docs_src/dependencies/tutorial008b_py39.py" = ["B904"]
-"docs_src/dependencies/tutorial009_py310.py" = ["F821"]
-"docs_src/dependencies/tutorial009_py39.py" = ["F821"]
 "docs_src/dependencies/tutorial010_py310.py" = ["F821"]
-"docs_src/dependencies/tutorial010_py39.py" = ["F821"]
-"docs_src/path_operation_advanced_configuration/tutorial007_pv1_py39.py" = ["B904"]
 "docs_src/path_operation_advanced_configuration/tutorial007_py310.py" = ["B904"]
-"docs_src/path_operation_advanced_configuration/tutorial007_py39.py" = ["B904"]
 "docs_src/query_params_str_validations/tutorial012_an_py310.py" = ["B006"]
-"docs_src/query_params_str_validations/tutorial012_an_py39.py" = ["B006"]
 "docs_src/query_params_str_validations/tutorial013_an_py310.py" = ["B006"]
-"docs_src/query_params_str_validations/tutorial013_an_py39.py" = ["B006"]
 "docs_src/security/tutorial004_an_py310.py" = ["B904"]
-"docs_src/security/tutorial004_an_py39.py" = ["B904"]
 "docs_src/security/tutorial004_py310.py" = ["B904"]
-"docs_src/security/tutorial004_py39.py" = ["B904"]
 "docs_src/security/tutorial005_an_py310.py" = ["B904"]
-"docs_src/security/tutorial005_an_py39.py" = ["B904"]
 "docs_src/security/tutorial005_py310.py" = ["B904"]
-"docs_src/security/tutorial005_py39.py" = ["B904"]
 "docs_src/json_base64_bytes/tutorial001_py310.py" = ["UP012"]
 "docs_src/stream_json_lines/tutorial001_py310.py" = ["UP028"]
 "docs_src/stream_data/tutorial001_py310.py" = ["UP028"]