Allow to generate HLT configuration without specifying an input file
HLT configuration for P1 data-taking must be independent of an input file, and thus should not require any input file at all. The input file should only be needed if we want to process events with a given configuration.
Two changes are made (separate commits, please do not squash):
- [TrigCommon] Allow running
athenaHLT.py --dump-config-exit
without--file
- [TrigValidation] Add an ART test checking that running without any file produces identical configuration as running with a Run-2 file and with a Run-3 file. Drop the file from "dumpConfig" test definitions.
Jira: ATR-25210