build(gradle): Prepare for eventually using atlassian.io artifacts

This eliminates a source of failure when eventually migrating to the
Jira REST API client version 6.

Signed-off-by: Sebastian Schuberth <sebastian@doubleopen.org>

buildSrc/src/main/kotlin/ort-base-conventions.gradle.kts

@@ -26,7 +26,7 @@ repositories {
         }
 
         filter {
-            includeGroupByRegex("com\\.atlassian\\..*")
+            includeGroupByRegex("(com|io)\\.atlassian\\..*")
             includeVersionByRegex("log4j", "log4j", ".*-atlassian-.*")
         }
     }