Add 10.8.0 to issue template (#7513)

.github/ISSUE_TEMPLATE/issue report.yml

@@ -30,6 +30,7 @@ body:
       label: Jellyfin Version
       description: What version of Jellyfin are you running?
       options:
+        - 10.8.0
         - 10.7.7
         - 10.7.z
         - 10.6.4