Update toolchain in gameroom test docker image

Updates the toolchain to 1.75.0 such that the rust compiles.

Signed-off-by: Shawn T. Amundson <[email protected]>

examples/gameroom/tests/Dockerfile

@@ -20,6 +20,8 @@ RUN apt-get update \
  tzdata \
  && rm -r /var/lib/apt/lists/*
 
+RUN rustup-init -y --default-toolchain=1.75.0 && rustup update
+
 # Build gameroom cli
 
 WORKDIR /project/gameroom