lint: switch to ruff for formatting and linting

- use dedicated ruff.toml for configuration
- download via docker image layer at build time

ci/lint/01_install.sh

@@ -32,8 +32,7 @@ python3 --version
 uv pip install --python /python_env \
   lief==0.17.5 \
   mypy==1.19.1 \
-  pyzmq==27.1.0 \
-  ruff==0.15.5
+  pyzmq==27.1.0
 
 SHELLCHECK_VERSION=v0.11.0
 curl --fail -L "https://github.com/koalaman/shellcheck/releases/download/${SHELLCHECK_VERSION}/shellcheck-${SHELLCHECK_VERSION}.linux.$(uname --machine).tar.xz" | \

ci/lint_imagefile

@@ -6,9 +6,11 @@
 
 FROM mirror.gcr.io/ubuntu:24.04
 
-# Pin uv to minor version to avoid breaking changes:
+# Pin uv and ruff to minor version to avoid breaking changes
 # https://docs.astral.sh/uv/reference/policies/versioning/
+# https://docs.astral.sh/ruff/versioning/
 COPY --from=ghcr.io/astral-sh/uv:0.10 /uv /uvx /bin/
+COPY --from=ghcr.io/astral-sh/ruff:0.15 /ruff /bin/
 
 COPY ./ci/retry/retry /ci_retry
 COPY ./.python-version /.python-version