ci: provide mechanism to override ancestor release #23525
Merged
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PR#23421 introduced performance and scalability regressions. This will cause nightly builds against 0.78.13+ to fail. This PR introduces a mechanism to provide the merge commit of PR#23421 as ancestor / comparison base when this commit is included in the current state and as long as the next release 0.79.0 (which will contain the PR) is not reached.
This should address the current failures of the feature benchmark and scalability benchmark in nightly#5406, nightly#5411, and subsequent builds until the next major release.
This PR also contains refactorings. Either review commit-wise or focus on commit 034fe03.