gifn-apply: rename the Ruff config files for clarity

Put the Ruff TOML configuration files into the same directory;
they do not necessarily need to be named pyproject.toml for
some time now, so there is no need to keep them in separate directories.

Change-Id: I14f89b219716f7e796d085fc2bcd98a0ff661e22
diff --git a/tools/git-if-needed/python/tox.ini b/tools/git-if-needed/python/tox.ini
index a17f44c..cbcb90a 100644
--- a/tools/git-if-needed/python/tox.ini
+++ b/tools/git-if-needed/python/tox.ini
@@ -24,8 +24,8 @@
 deps =
   -r requirements/ruff.txt
 commands =
-  ruff check --config config/ruff-base/pyproject.toml --select=D,I --diff -- {[defs]pyfiles}
-  ruff format --check --config config/ruff-base/pyproject.toml --diff -- {[defs]pyfiles}
+  ruff check --config config/ruff/base.toml --select=D,I --diff -- {[defs]pyfiles}
+  ruff format --check --config config/ruff/base.toml --diff -- {[defs]pyfiles}
 
 [testenv:reformat]
 skip_install = True
@@ -35,8 +35,8 @@
 deps =
   -r requirements/ruff.txt
 commands =
-  ruff check --config config/ruff-base/pyproject.toml --select=D,I --fix -- {[defs]pyfiles}
-  ruff format --config config/ruff-base/pyproject.toml -- {[defs]pyfiles}
+  ruff check --config config/ruff/base.toml --select=D,I --fix -- {[defs]pyfiles}
+  ruff format --config config/ruff/base.toml -- {[defs]pyfiles}
 
 [testenv:mypy]
 skip_install = True
@@ -56,7 +56,7 @@
 deps =
   -r requirements/ruff.txt
 commands =
-  ruff check --config config/ruff-all/pyproject.toml -- {[defs]pyfiles}
+  ruff check --config config/ruff/all.toml -- {[defs]pyfiles}
 
 [testenv:unit-tests]
 tags =