Finish replacing CentOS 7 with CentOS Stream 8 in CI

We missed a bit to actually change the execution script
to use the new containers.

Fixes: c96434d6d288f23a3aa462246ccd6121673b5b69

Signed-off-by: Neal Gompa <ngompa13@gmail.com>

run_ci_tests_containers.sh

@@ -36,19 +36,19 @@ podman run --rm -it --name pagure-fedora-rpms-py3 \
     pagure-fedora-rpms-py3
 
 
-podman build --rm -t pagure-c7-rpms-py2 \
-    -f dev/containers/centos7-rpms-py2 \
+podman build --rm -t pagure-c8s-rpms-py3 \
+    -f dev/containers/centos8-rpms-py3 \
     dev/containers
 
-if [ ! -d `pwd`/results_centos7-rpms-py2 ]; then
-  mkdir `pwd`/results_centos7-rpms-py2;
+if [ ! -d `pwd`/results_centos8-rpms-py3 ]; then
+  mkdir `pwd`/results_centos8-rpms-py3;
 fi
 
-podman run --rm -it --name pagure-c7-rpms-py2 \
-    -v `pwd`/results_centos7-rpms-py2:/pagure/results:z \
+podman run --rm -it --name pagure-c8s-rpms-py3 \
+    -v `pwd`/results_centos8-rpms-py3:/pagure/results:z \
     -e BRANCH=$BRANCH \
     -e REPO=$REPO \
-    pagure-c7-rpms-py2
+    pagure-c8s-rpms-py3
 
 
 podman build --rm -t pagure-fedora-pip-py3 \