ci - make sure rustup is up to date

Author: jeremylt

.gitlab-ci.yml

@@ -194,6 +194,7 @@ noether-rust-qfunctions:
   script:
     - rm -f .SUCCESS
     # Rustup
+    - rustup update nightly
     - rustup component add rust-src --toolchain nightly-x86_64-unknown-linux-gnu
     # libCEED
     - make configure OPT='-O -march=native -ffp-contract=fast' CUDA_DIR=/usr/local/cuda-12.9