treewide: bump toolchain_cc_mngn

This includes the MSVC compatible efi toolchain flags

Change-Id: I06145ba9b1e403fb9df1005403958d4f04276007
Reviewed-on: https://review.monogon.dev/c/monogon/+/4381
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
Tested-by: Jenkins CI
diff --git a/MODULE.bazel b/MODULE.bazel
index 18ffee5..cc18f7d 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -112,7 +112,7 @@
 bazel_dep(name = "toolchain_cc_mngn")
 git_override(
     module_name = "toolchain_cc_mngn",
-    commit = "6e241ef6ebcbdc630d332fa789a1b53b52c27771",
+    commit = "80acaa3e95473ad76c34c6f409b82f3802de9bd2",
     remote = "https://review.monogon.dev/toolchain_cc",
 )