chore(blackduck): run scan as root

SUITEDEV-35556

Dockerfile.codescan

@@ -1,17 +1,15 @@
 FROM debian:12.5
 
-ARG FLUTTER_SDK=/workspace/source/flutter
+ARG FLUTTER_SDK=/usr/local/flutter
 ARG FLUTTER_VERSION=3.16.9
 
+COPY . /workspace/source
 WORKDIR /workspace/source
 
 # install all needed stuff
 RUN apt-get update
 RUN apt-get install -y curl git unzip
 
-RUN groupadd -r nonroot && useradd -r -s /bin/false -g nonroot nonroot
-RUN chown -R nonroot:nonroot /home
-
 #clone flutter
 RUN git clone https://github.com/flutter/flutter.git $FLUTTER_SDK
 
@@ -22,12 +20,10 @@ RUN cd $FLUTTER_SDK && git fetch && git checkout $FLUTTER_VERSION
 ENV PATH="$FLUTTER_SDK/bin:$FLUTTER_SDK/bin/cache/dart-sdk/bin:${PATH}"
 
 RUN cd /workspace/source
-COPY . /workspace/source
-RUN flutter doctor
 
-RUN chown -R nonroot:nonroot /workspace/source
+RUN flutter doctor
 
-USER nonroot:nonroot
-CMD flutter pub get
+# remove unnecessary files
+CMD flutter pub get && cat pubspec.lock && rm -rf example