fix drone deployment

.drone.yml

@@ -4,7 +4,7 @@ name: hugoweb
 
 steps:
   - name: submodules
-    image: alpine/git
+    image: bitnami/git:latest
     commands:
       - git submodule update --init --recursive
 
@@ -12,7 +12,8 @@ steps:
     image: plugins/hugo
     settings:
       validate: true
-      # hugo_version: 0.83.1
+      hugo_version: 0.88.1
+      extended: true
 
   - name: deploy
     image: drillster/drone-rsync

.gitmodules

@@ -1,4 +1,4 @@
 [submodule "themes/hugo-hero-theme"]
 	path = themes/hugo-hero-theme
-	url = git@github.com:seuh2022/hugo-hero-theme.git
+	url = https://github.com/seuh2022/hugo-hero-theme.git
 	branch = master