[roll] Roll fuchsia [bazel] Preparation CL for host_py_test() changes.

This CL provides many changes to prepare for another one that
will refactor how host_py_test() works.

First, the FuchsiaHostTestInfo provider gets a new key named
"list_cases_argument" which, when non-empty, will provide the
value passed to the tests.json entry for a Python host test.

This will need to be "list_host_python_unittests" in the future
to ensure that `fx test --list <test_name>` works properly for
Python host tests that include unittests.TestCase instances.

This optional value is passed to the final tests.json entries
generated by build_tests_json.py.

Second, host_test() gets three new attributes:

  - list_cases_argument: to provide the value described above,
    which will only be used for host_py_test() targets for
    now, but later will also be needed for the Bazel equivalent
    of python_mobly_test().

  - host_test_wrapper_generator_{args, deps}: are used to pass
    extra arguments to the host test wrapper generator script,
    where the arguments can include '$(location <label>)'
    expressions referring to labels from the dependencies.

    This will be used to specialize calls to the wrapper
    generator for Python host tests, as this will require
    a little bit of extra logic.

Third, the repository rule for @prebuilt_python ensures that
the name of the Python interpreter entry point is "python3"
instead of the current versioned "python3.11". This ensures
a stable file name. The CL also introduces a new
//build/bazel/rules/python:python_interpreter_as_test_data
target that makes the interpreter (and its runtime files)
available under test_data/ at runtime, which will be used
by the host_py_test() wrapper script too.

Original-Bug: 489398821
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1553360
Original-Revision: 0e089bb7ecd608a4de6e8621187a814f0e172723
GitOrigin-RevId: 5cb17a232e210f94f8e3fc008c766dc080f9bf9d
Change-Id: If2ffe7bfb2b3fb071705091a1d79911a824ebf20