Update conditions tag for test_RUN3_AF3InputParamFiles.sh ART build test (ATLASSIM-6547)

Some conditions folders are missing from OFLCOND-MC21-SDR-RUN3-03 so updating the test to use OFLCOND-MC21-SDR-RUN3-07.

NB This MR only affects an ART script, so will have no effect on the CI pipeline output.