Fix type of `arguments` param in `ctx.actions.run()` and `run_shell()`

In both cases, we want to restrict the type to a Sequence in Java (to avoid an
unsafe cast) and to document it as a sequence of unspecified type in Starlark
API docs (unfortunately, ParamType annotations currently don't allow us to
express a Sequence containing 2 different allowed types possibly intermixed).

This prevents a Bazel crash when trying to use a scalar string value for the
`arguments` param in `ctx.actions.run_shell()`.

RELNOTES: None.
PiperOrigin-RevId: 368918401
4 files changed
tree: 86afed388eb3e1743e096654c6233b13378ea5df
  1. .bazelci/
  2. examples/
  3. scripts/
  4. site/
  5. src/
  6. third_party/
  7. tools/
  8. .bazelrc
  9. .gitattributes
  10. .gitignore
  11. AUTHORS
  12. BUILD
  13. CHANGELOG.md
  14. CODEBASE.md
  15. CODEOWNERS
  16. combine_distfiles.py
  17. combine_distfiles_to_tar.sh
  18. compile.sh
  19. CONTRIBUTING.md
  20. CONTRIBUTORS
  21. distdir.bzl
  22. distdir_deps.bzl
  23. ISSUE_TEMPLATE.md
  24. LICENSE
  25. README.md
  26. WORKSPACE
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