build: remove compatibility_level and update rules_python to 1.8.5

Cherry-pick from PRs The-OpenROAD-Project#4097 and The-OpenROAD-Project#4098. Removes unused
compatibility_level from module() and updates rules_python version
to match resolved dependency.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>

Author: oharboe

MODULE.bazel

@@ -3,7 +3,6 @@
 module(
     name = "orfs",
     version = "0.0.1",
-    compatibility_level = 1,
 )
 
 bazel_dep(name = "bazel-orfs")
@@ -23,7 +22,7 @@ archive_override(
     urls = ["https://github.com/The-OpenROAD-Project/bazel-orfs/archive/e46fca0214def95ecfbada54a8028da7d47fd122.tar.gz"],
 )
 
-bazel_dep(name = "rules_python", version = "1.2.0")
+bazel_dep(name = "rules_python", version = "1.8.5")
 bazel_dep(name = "rules_shell", version = "0.6.1")
 
 python = use_extension("@rules_python//python/extensions:python.bzl", "python")