update dockerfile

Dockerfile

@@ -25,8 +25,8 @@ COPY requirements.txt .
 RUN --mount=type=secret,id=BITBUCKET_APP_PW,mode=0444,required=true \
     git clone https://vumichien:$(cat /run/secrets/BITBUCKET_APP_PW)@bitbucket.org/dtm-partners/meisai-check-ai.git && \
     cd meisai-check-ai && \
-    git checkout chien_develop && \
-    git pull origin chien_develop && \
+    git checkout main && \
+    git pull origin main && \
     cd ..
 
 # Cài đặt dependencies