message: Python-Setup: run auto_install_packages.py with -B flag
  This avoids creating a __pycache__ folder in the _actions folder, which
  may cause file ownership problems on self-hosted runners
  when run in a docker container.
diff: @@ -253,11 +253,14 @@ export async function installPythonDeps(codeql: CodeQL, logger: Logger) {
  if (process.platform === "win32") {
  await new toolrunner.ToolRunner(await safeWhich.safeWhich("py"), [
  "-3",
  + "-B",
  path.join(scriptsFolder, script),
  path.dirname(codeql.getPath()),
  ]).exec();
  } else {
  - await new toolrunner.ToolRunner(path.join(scriptsFolder, script), [
  + await new toolrunner.ToolRunner(await safeWhich.safeWhich("python3"), [
  + "-B",
  + path.join(scriptsFolder, script),
  path.dirname(codeql.getPath()),
  ]).exec();
  }
  