Update Dockerfile

Dockerfile

@@ -14,15 +14,16 @@ RUN apt-get update && apt-get install -y \
     python3-setuptools \
     python3-venv \
     build-essential \
-    git \
     cmake \
     libtool \
     autoconf \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
-# Install makensis by building from source
-RUN git clone --branch master https://github.com/NSIS/NSIS.git /opt/nsis \
+# Download and extract the NSIS source
+RUN wget https://github.com/NSIS/NSIS/archive/refs/heads/master.tar.gz -O /tmp/nsis.tar.gz \
+    && mkdir /opt/nsis \
+    && tar -xvzf /tmp/nsis.tar.gz -C /opt/nsis --strip-components=1 \
     && cd /opt/nsis \
     && ./configure \
     && make \