update Miri

RalfJung · RalfJung · commit 9f2b69d344bf · 2022-06-01T09:31:04.000-04:00
diff --git a/Cargo.lock b/Cargo.lock
@@ -5509,6 +5509,8 @@ dependencies = [
  "pretty_assertions 1.2.1",
  "regex",
  "rustc_version",
+ "serde",
+ "serde_json",
 ]
 
 [[package]]
diff --git a/src/tools/miri b/src/tools/miri
@@ -1 +1 @@
-Subproject commit 065ff89e33b67b3527fcdd56cf8b432e593e32d4
+Subproject commit 749efd29565a9b8f47afb441aaacfcc10bc145d7
