We are still using maven 3.6.2 which should not require https yet.
But when do bamboo spec scan, we got error like following. The same settings.xml work for other older version bamboo
Non-resolvable parent POM for com.atlassian.bamboo:bamboo-specs-generator:1.0.0: Could not transfer artifact com.atlassian.bamboo:bamboo-specs-parent:pom:8.1.3 from/to maven-default-http-blocker (http://0.0.0.0/): Blocked mirror for repositories: [central