Merge pull request #195 from code0-tech/renovate/rust-1.x

Update rust Docker tag to v1.90

Author: raphael-goetz

Dockerfile

@@ -1,4 +1,4 @@
-FROM rust:1.89-slim as builder
+FROM rust:1.90-slim as builder
 WORKDIR /app
 COPY . .
 RUN cargo build --release