Added caching / avoid orphans mechanisms

Dockerfiles/build-base/centos/Dockerfile

@@ -61,7 +61,4 @@ RUN --mount=type=tmpfs,target=/var/lib/dnf/ \
         --setopt=keepcache=0 \
         --best \
         --nodocs ${INSTALL_PKGS} && \
-    microdnf -y clean all && \
-    rm -rf /var/cache/yum /var/lib/yum/yumdb/* /usr/lib/udev/hwdb.d/* && \
-    rm -rf /var/cache/dnf /etc/udev/hwdb.bin /root/.pki
-    dnf -y clean all
+    microdnf -y clean all

Dockerfiles/build-base/ol/Dockerfile

@@ -17,8 +17,6 @@ LABEL org.opencontainers.image.authors="Alexey Pustovalov <alexey.pustovalov@zab
       org.opencontainers.image.vendor="Zabbix LLC" \
       org.opencontainers.image.version="${ZBX_VERSION}"
 
-COPY ["conf/etc/yum.repos.d/oracle-epel-ol9.repo", "/etc/yum.repos.d/oracle-epel-ol9.repo"]
-
 RUN --mount=type=tmpfs,target=/var/lib/dnf/ \
     set -eux && \
     INSTALL_PKGS="autoconf \