Bump rust from 1.86.0 to 1.89.0

Bumps rust from 1.86.0 to 1.89.0.

---
updated-dependencies:
- dependency-name: rust
  dependency-version: 1.89.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Dockerfile

@@ -21,7 +21,7 @@
 #   training loss curves from NeMo.
 ARG BASE_IMAGE=nvcr.io/nvidia/pytorch:25.06-py3
 
-FROM rust:1.86.0 AS rust-env
+FROM rust:1.89.0 AS rust-env
 
 RUN rustup set profile minimal && \
   rustup install 1.82.0 && \