Chore: wrong nightly date in changelog

crates/rustc_codegen_nvvm/CHANGELOG.md

@@ -42,7 +42,7 @@ However, if you rely on libm for determinism, you must disable the overriding, s
 This also makes PTX much smaller generally, in our example path tracer, it slimmed the PTX file from about `3800` LoC to `2300` LoC.
 
 - Trace-level debug is compiled out for release now, decreasing the size of the codegen dll and improving compile times.
-- Updated to nightly 12/5/21
+- Updated to nightly 12/4/21
 
 ## 0.1.1 - 11/26/21