[9.20] fix: ci: Fix paths to binaries in cross-version-config-tests job
The cross-version-config-tests job has never functioned in CI because the testing framework changed after the testing was completed. To run the new "named" binary using the old configurations, paths in the test framework must be updated to point to the location of the new binaries.
Closes #4977 (closed)
Backport of MR !9702 (merged)