proxies: redirect / to /main for workstation-working-group

Right now there's a issue in the docs pipeline where it's not handling
the main branch right, add this temp redirect to work around that until
it's fixed properly in docs.

See https://pagure.io/fedora-infrastructure/issue/10243

Signed-off-by: Kevin Fenzi <kevin@scrye.com>

playbooks/include/proxies-redirects.yml

@@ -884,3 +884,9 @@
     website: qa.fedoraproject.org
     path: /
     target: https://fedoraproject.org/wiki/QA
+
+  - role: httpd/redirectmatch
+    shortname: workstation-main
+    website: docs.fedoraproject.org
+    regex: ^(.*)/workstation-working-group/
+    target: https://docs.fedoraproject.org/$1/main/