CI: run the bigexpe on every arch (to compare the results)

5 jobs for master in 2 minutes and 19 seconds (queued for 1 second)
Name Stage Failure
expe-sasa.4.0.3 Reproduce
make[2]: Leaving directory '/builds/verimag/reproducible-research/sasartifact/expe/async-unison'
make[1]: *** [async-unison.expe] Error 2
Makefile:60: recipe for target 'async-unison.expe' failed
make[1]: Leaving directory '/builds/verimag/reproducible-research/sasartifact/expe'
make: *** [bigexpe] Error 2
Makefile:7: recipe for target 'bigexpe' failed
Cleaning up file based variables
ERROR: Job failed: exit code 1