[2021] Increase rust version

ACSimon33 · ACSimon33 · commit b450e09f6009 · 2024-12-12T09:20:47.000+01:00
diff --git a/2021/Dockerfile b/2021/Dockerfile
@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1
-FROM rust:1.67.0
+FROM rust:1.70.0
 
 # Setup rust toolchain
 RUN rustup component add rustfmt
