Add branch rule for upcoming release branch

[popduke]

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[coveralls]

Pull Request Test Coverage Report for Build 19954155187

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 69 unchanged lines in 9 files lost coverage.
• Overall coverage decreased (-0.09%) to 65.153%

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Files with Coverage Reduction	New Missed Lines	%
org/apache/bifromq/basecluster/memberlist/HostMemberList.java	1	93.43%
org/apache/bifromq/basekv/store/wal/KVRangeWALSubscription.java	1	92.66%
org/apache/bifromq/mqtt/service/LocalTopicRouter.java	2	91.34%
org/apache/bifromq/basekv/store/wal/KVRangeWALStore.java	3	86.96%
org/apache/bifromq/dist/trie/STopicFilterTrieNode.java	3	88.28%
org/apache/bifromq/basekv/raft/RaftNodeState.java	6	90.15%
org/apache/bifromq/basekv/raft/RaftNodeStateFollower.java	8	81.2%
org/apache/bifromq/mqtt/handler/MQTTSessionHandler.java	9	81.16%
org/apache/bifromq/basekv/store/range/KVRangeFSM.java	36	80.03%

Totals
Change from base Build 19848171985:	-0.09%
Covered Lines:	27864
Relevant Lines:	41275

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💛 - Coveralls