CI: Replace RHEL 8.4 by RHEL 8.5 for devel (#3747) (#3749)

* Replace RHEL 8.4 by RHEL 8.5 for devel.

* Install virtualenv.

* Revert "Install virtualenv."

This reverts commit 22ba0d074e.

* Just do another skip...

(cherry picked from commit 26c7995c82)

Co-authored-by: Felix Fontein <felix@fontein.de>

.azure-pipelines/azure-pipelines.yml

@@ -209,8 +209,8 @@ stages:
               test: macos/11.1
             - name: RHEL 7.9
               test: rhel/7.9
-            - name: RHEL 8.4
-              test: rhel/8.4
+            - name: RHEL 8.5
+              test: rhel/8.5
             - name: FreeBSD 12.2
               test: freebsd/12.2
             - name: FreeBSD 13.0

tests/integration/targets/django_manage/aliases

@@ -6,3 +6,4 @@ skip/osx
 skip/rhel8.2
 skip/rhel8.3
 skip/rhel8.4
+skip/rhel8.5