start migration gitea to forgejo

.devcontainer/Dockerfile

@@ -1,6 +1,15 @@
 FROM debian:13
 
-RUN apt update &&\ 
+ARG USERNAME=dev
+ARG USER_UID=1000
+ARG USER_GID=1000
+
+RUN groupadd --gid ${USER_GID:-1000} $USERNAME \
+    && useradd --uid ${USER_UID:-1000} --gid ${USER_GID:-1000} -m $USERNAME
+
+RUN apt update &&\
     apt install ca-certificates curl git -y &&\
     curl -fsSL https://get.docker.com -o get-docker.sh &&\
     sh get-docker.sh
+
+USER $USERNAME