Update bant.

Can better deal with some corner-case uses in OpenROAD (such
as includes that point backwards `../include`).

A new feature allows to create a script to fix includes
to be fully qualified.
https://github.com/hzeller/bant#srcs-canonical

Signed-off-by: Henner Zeller <h.zeller@acm.org>

Author: hzeller

MODULE.bazel

@@ -90,7 +90,7 @@ bazel_dep(name = "toolchains_llvm", version = "1.5.0", dev_dependency = True)
 # --- Dev dependencies (not propagated to downstream consumers) ---
 
 bazel_dep(name = "aspect_rules_lint", version = "2.5.2", dev_dependency = True)
-bazel_dep(name = "bant", version = "0.2.8", dev_dependency = True)
+bazel_dep(name = "bant", version = "0.2.9", dev_dependency = True)
 bazel_dep(name = "buildifier_prebuilt", version = "8.5.1.2", dev_dependency = True)
 bazel_dep(name = "rules_verilator", version = "0.1.0", dev_dependency = True)
 bazel_dep(name = "verilator", version = "5.036.bcr.3", dev_dependency = True)