updating the fedora image to 38 as latest using python 3.12

(cherry picked from commit 5f0c2b0)

Dockerfile

@@ -1,12 +1,11 @@
-FROM fedora
+FROM fedora:38
 MAINTAINER https://github.com/SatelliteQE
 
 RUN dnf install -y gcc git make cmake libffi-devel openssl-devel python3-devel \
     python3-pip redhat-rpm-config which libcurl-devel libxml2-devel
 
 COPY / /robottelo/
 WORKDIR /robottelo
-RUN curl https://raw.githubusercontent.com/SatelliteQE/broker/master/broker_settings.yaml.example -o broker_settings.yaml
 
 ENV PYCURL_SSL_LIBRARY=openssl
 RUN pip install -r requirements.txt