fix(ci): ensure asdf is correctly used

Author: glihm

.devcontainer/Dockerfile

@@ -56,15 +56,13 @@ RUN tar -C /usr/local -xzf go.tar.gz
 ENV PATH="${PATH}:/usr/local/go/bin"
 
 RUN go install github.com/asdf-vm/asdf/cmd/asdf@v0.16.0
-ENV PATH="${ASDF_DATA_DIR:-$HOME/.asdf}/shims:$PATH"
+ENV PATH="/root/.asdf/shims:$PATH"
 ENV PATH="${PATH}:/root/go/bin"
 
 RUN asdf plugin add scarb
-RUN asdf install scarb 2.9.4
-
-# For now add katana to the path to ensure the tests can be run without issues.
 RUN asdf plugin add dojo
-RUN asdf install dojo 1.4.1
+RUN echo "scarb 2.9.4\ndojo 1.4.1" > /.tool-versions
+RUN asdf install
 
 RUN chown -R root:root /usr/local/cargo
 RUN chmod -R 700 /usr/local/cargo