Add missing python3-pyOpenSSL library

This commit adds python3-pyOpenSSL to the Dockerfile, needed for ovn-detrace
to work with ssl endpoints.

Signed-off-by: Daniel Mellado <dmellado@redhat.com>

Dockerfile

@@ -42,7 +42,7 @@ RUN INSTALL_PKGS=" \
 	#======== 4.6.0-0.nightly-2020-09-25-070943 Version ========
 	# ovn2.13-20.06.2-11.el8fdp.x86_64
 	# openvswitch2.13-2.13.0-57.el8fdp
-	yum install -y --setopt=tsflags=nodocs --setopt=skip_missing_names_on_install=False "openvswitch2.13 == 2.13.0-57.el8fdp" "openvswitch2.13-devel == 2.13.0-57.el8fdp" "python3-openvswitch2.13 == 2.13.0-57.el8fdp" && \
+	yum install -y --setopt=tsflags=nodocs --setopt=skip_missing_names_on_install=False "openvswitch2.13 == 2.13.0-57.el8fdp" "openvswitch2.13-devel == 2.13.0-57.el8fdp" "python3-openvswitch2.13 == 2.13.0-57.el8fdp" "python3-pyOpenSSL" && \
 	yum install -y --setopt=tsflags=nodocs --setopt=skip_missing_names_on_install=False "ovn2.13 == 20.06.2-11.el8fdp" "ovn2.13-central == 20.06.2-11.el8fdp" "ovn2.13-host == 20.06.2-11.el8fdp" "ovn2.13-vtep == 20.06.2-11.el8fdp" && \
 	yum clean all && rm -rf /var/cache/*