feat(gitpod): use custom prebuilt image (#56074)

.gitpod.Dockerfile

@@ -1,9 +0,0 @@
-FROM gitpod/workspace-mongodb:latest
-
-# from https://www.gitpod.io/docs/introduction/languages/javascript#node-versions
-RUN bash -c 'VERSION="20" \
-  && source $HOME/.nvm/nvm.sh && nvm install $VERSION \
-  && nvm use $VERSION && nvm alias default $VERSION \
-  && npm i -g pnpm@9'
-
-RUN echo "nvm use default &>/dev/null" >> ~/.bashrc.d/51-nvm-fix

.gitpod.yml

@@ -1,5 +1,4 @@
-image:
-  file: .gitpod.Dockerfile
+image: ghcr.io/freecodecamp/gitpod-fcc:latest
 ports:
   - port: 27017 # mongodb
     onOpen: ignore