Bump resolver version to the default for 2024 edition.

wt · wt · commit f2ad315d4c3a · 2026-03-10T21:47:50.000-07:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -1,5 +1,5 @@
 [workspace]
-resolver = "2"
+resolver = "3"
 members = [
     "cortex-m",
     "cortex-m-types",
