fix: allow warn logging to be disabled via RULES_PYTHON_REPO_DEBUG_VERBOSITY

Author: mattem

CHANGELOG.md

@@ -78,6 +78,7 @@ Unreleased changes template.
 * (toolchains) Do not try to run `chmod` when downloading non-windows hermetic toolchain
   repositories on Windows. Fixes
   [#2660](https://github.com/bazel-contrib/rules_python/issues/2660).
+* (logging) Allow repo rule logging level to be set to `FAIL` via the `RULES_PYTHON_REPO_DEBUG_VERBOSITY` environment variable.
 
 {#v0-0-0-added}
 ### Added

python/private/repo_utils.bzl

@@ -56,6 +56,7 @@ def _logger(mrctx, name = None):
 
     verbosity = {
         "DEBUG": 2,
+        "FAIL": -1,
         "INFO": 1,
         "TRACE": 3,
     }.get(verbosity_level, 0)