fix trivy scan issues

Dockerfile

@@ -5,7 +5,11 @@ RUN apk update && apk add git
 RUN go get github.com/jsha/minica
 
 
-FROM python:3.8.12-alpine3.15
+FROM python:3.9-alpine3.15
+
+# fix libexpat
+RUN apk update \
+    && apk add --no-cache  expat
 
 # Upgrade pip
 RUN pip install --upgrade pip
@@ -15,17 +19,19 @@ RUN addgroup -g 1000 -S certgenerator  \
     && adduser -u 1000 -S certgenerator -G certgenerator
 
 USER certgenerator
+
 WORKDIR /home/certgenerator
 
 COPY --from=builder /go/bin/minica /usr/bin/minica
 
-
 COPY --chown=certgenerator:certgenerator . .
 
 RUN pip install  --user --no-cache-dir .
+
 ENV PATH="/home/certgenerator/.local/bin:${PATH}"
 
 ENTRYPOINT ["certgenerator"]
+
 CMD ["--help"]