misc: Update GitHub Actions Workflow names

Change-Id: Iaf4cbdf7a8edd2b9ae00308ae41f6fa805ab9446
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/71504
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
3 files changed