Update Dockerfile

Dockerfile

@@ -7,8 +7,8 @@ RUN apt-get update && apt-get install -y \
     ghostscript \
     && rm -rf /var/lib/apt/lists/* \
     # pastikan binary convert ada (buat symlink kalau perlu)
-    && if [ -f /usr/bin/convert-im6.q16 ]; then ln -sf /usr/bin/convert-im6.q16 /usr/bin/convert; fi \
-    && if [ -f /usr/bin/convert-im6 ]; then ln -sf /usr/bin/convert-im6 /usr/bin/convert; fi
+    && rm -f /usr/bin/convert \
+    && if [ -f /usr/bin/convert-im6.q16 ]; then ln -s /usr/bin/convert-im6.q16 /usr/bin/convert; fi \
 
 WORKDIR /app