Update deno installation procedure

Author: fedgiac

.devcontainer/Dockerfile

@@ -1,8 +1,8 @@
-FROM --platform=linux/amd64 mcr.microsoft.com/vscode/devcontainers/base:1-bullseye
+FROM mcr.microsoft.com/vscode/devcontainers/base:2-trixie
 
 ENV DENO_INSTALL=/deno
 RUN mkdir -p /deno \
-    && curl -fsSL https://deno.land/x/install/install.sh | sh \
+    && curl -fsSL https://deno.land/install.sh | sh \
     && chown -R vscode /deno
 
 ENV PATH=${DENO_INSTALL}/bin:${PATH} \