fix: patch peframe tostring() for Python 3.9+ compatibility (#3621) (#3625)

* fix: patch peframe tostring() for Python 3.9+ compatibility (#3621)

* add comment explaining peframe tostring patch

Author: Abhishek9639

integrations/malware_tools_analyzers/Dockerfile

@@ -60,10 +60,12 @@ RUN if [[ $TARGETARCH == "amd64" ]]; then \
 # Build guelfo's PEFrame
 WORKDIR ${PROJECT_PATH}/peframe
 COPY requirements/peframe-requirements.txt ./
+# peframe-ds 6.1.0 uses array.tostring() which was removed in Python 3.9+, patch it after install
 RUN python3 -m venv venv \
     && . venv/bin/activate \
     && pip3 install --no-cache-dir --upgrade pip \
-    && pip3 install --no-cache-dir -r peframe-requirements.txt --no-cache-dir
+    && pip3 install --no-cache-dir -r peframe-requirements.txt --no-cache-dir \
+    && sed -i 's/\.tostring()/\.tobytes()/g' venv/lib/python3.*/site-packages/peframe/modules/features.py
 
 # Install guelfo's artifacts
 # there is no version management on this project so we just pull the most recent changes