Metrics repository makes assumption about default key prefix length

[pdbreen]

measuredJobs and measuredQueues runs the corresponding key set through a substr map that contains an implicit assumption about the length of the key prefix (being the length of 'horizon:'). Example:

horizon/src/Repositories/RedisMetricsRepository.php

Line 42 in aab617e

return substr($class, 12);

If a different prefix is used, metrics dashboard content will not be correct.

[themsaid]

fixed