installing git and deleting target dir

.drone.yml

@@ -40,6 +40,7 @@ steps:
       target:
         from_secret: deploy_docs_dev_target
       source: docs/dist/html/
+      delete: true
 
 ---
 
@@ -59,7 +60,7 @@ steps:
     image: gcc:11-bullseye
     commands:
       - apt update -y
-      - apt install -y libfcgi-dev libfcgi-bin doxygen
+      - apt install -y libfcgi-dev libfcgi-bin doxygen git
       - git clone https://github.com/cesanta/mongoose.git
       - cd mongoose && make install && cd ..
       - make all DEBUG=1
@@ -85,3 +86,4 @@ steps:
       target:
         from_secret: deploy_docs_target
       source: docs/dist/html/
+      delete: true