Update Dockerfile to install latest version of rust

the apt version of rust is 1.5, while the latest stable
version of rust is 1.79.
By using the older version of Rust, it is not possible to
compile cairo-lang-test-utils due to the following error:

```console
#13 193.7 error[E0658]: use of unstable library feature 'result_option_inspect'
#13 193.7   --> /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cairo-lang-test-utils-2.7.0-rc.3/src/parse_test_file.rs:74:34
#13 193.7    |
#13 193.7 74 |         fs::File::open(filename).inspect_err(|_| log::error!("File not found: {filename:?}"))?;
```

Dockerfile

@@ -3,18 +3,18 @@ FROM ubuntu:24.10 AS build
 
 ARG VM_DEBUG
 
-# Install Alpine Dependencies
-# removal is temp. to fix https://github.com/orgs/community/discussions/120966
+
 RUN apt-get update && \
-    apt-get install build-essential cargo git golang upx-ucl libjemalloc-dev libjemalloc2 -y
+    apt-get install curl build-essential git golang upx-ucl libjemalloc-dev libjemalloc2 -y
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -q -y
 
 WORKDIR /app
 
 # Copy source code
 COPY . .
 
 # Build the project
-RUN VM_DEBUG=${VM_DEBUG} make juno
+RUN source ~/.cargo/env && VM_DEBUG=${VM_DEBUG} make juno
 
 # Compress the executable with UPX
 RUN upx-ucl /app/build/juno