chore: update dockerfile

move DENO_DIR up so its include in the dev build stage as well.

Dockerfile

@@ -17,13 +17,13 @@ RUN export DEBIAN_FRONTEND=noninteractive \
   && apt-get clean -y \
   && rm -rf /var/lib/apt/lists/*
 
+ENV DENO_DIR=/home/gitpod/.cache/deno
+
 FROM vscode as dev
 RUN export DEBIAN_FRONTEND=noninteractive \
   && apt-get update \
   && apt-get install -y zsh
 
-FROM vscode as gitpod
-
 # Gitpod creates a gitpod user to run without privileges
 # following https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#user
-ENV DENO_DIR=/home/gitpod/.cache/deno
+FROM vscode as gitpod