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agt-get upgrade in Dockerfile

Dockerfile

@@ -7,8 +7,8 @@ LABEL description="tebarius Mysteryhelfer web"
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
 
-
 RUN apt-get update \
+    && apt-get upgrade -y \
     && apt-get install -y --no-install-recommends curl \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*