Reorder Containerfile to make builds faster

Not perfect but effortless boost?

Containerfile

@@ -7,12 +7,13 @@ FROM docker.io/nginx:${NGINX_TAG} AS builder
 
 WORKDIR /usr/control-server
 
-COPY control-server /usr/control-server
-
 RUN apk add --no-cache \
     build-base \
-    cmake \
-    && mkdir -p build \
+    cmake
+
+COPY control-server /usr/control-server
+
+RUN mkdir -p build \
     && cd build \
     && cmake .. \
     && make -j$(nproc) \