print bash commands as they are executed

[rmartin16]

Changes

• Use bash --noprofile --norc -x -e -o pipefail {0} as the shell for all run actions
• I often feel lost in the workflow output; this helps keep track of where you are in the list of commands

Notes

• My primary concern with this is we no longer inherit the list of bash options that GitHub uses by default.
• That said, I think these options are quite stable and unlikely to meaningfully change over time.

PR Checklist:

• All new features have been tested
• All new features have been documented
• I have read the CONTRIBUTING.md file
• I will abide by the code of conduct

[freakboy3742]

I can't say pulling apart the logs has caused me any particular difficulty myself - but then, you've spent a lot more time diagnosing weird CI workflow issues recently, so you might be seeing this more acutely than I am.

I'm not especially concerned about changes in Bash's arguments, though - if Bash changed an argument of any note, you'd be able to see the nerdrage from orbit :-) I'd be more concerned about missing some neat feature that Github rolls out as a default; but even then, it's an easy change to roll back (or modify) if that becomes an issue.