Add Git LFS support to Gitea configuration

Dockerfile

@@ -0,0 +1,5 @@
+FROM gitea/gitea:latest
+USER root
+RUN apk add --no-cache git-lfs
+USER git
+

docker-compose.yml

@@ -4,6 +4,9 @@ services:
   gitea:
     image: gitea/gitea:latest
     container_name: gitea
+    build:
+      context: .
+      dockerfile: Dockerfile.gitea
     environment:
       - USER_UID=1000
       - USER_GID=1000
@@ -42,6 +45,8 @@ services:
       - GITEA__session__COOKIE_NAME=gitea_session
       - GITEA__session__COOKIE_SECURE=false
       - GITEA__session__DOMAIN=gitea.sigd.net
+      - GITEA__server__LFS_START_SERVER=true
+      - GITEA__lfs__PATH=/data/git/lfs
     volumes:
       - /docker/gitea/data:/data
       - /docker/gitea/config:/etc/gitea