Add opts.fileRegex option to ignore files in migrations dir

[karlhorky]

Hi @lukeed 👋 Hope things are good with you!

I'm playing around with colocating other TypeScript files in the migrations directory, and would love for those files to stay out of the migrations database.

What do you think about the opts.fileRegex approach in this PR, which allows users to customize the regular expression used in the totalist filter?

[karlhorky]

Seems like the GitHub Actions actions/setup-node@v1 step is failing, unable to find the requested Node.js version:

Run actions/setup-node@v1
  with:
    node-version: 14
    always-auth: false
Error: Unable to find Node version '14' for platform darwin and architecture arm64.

I think this may be as a result of macos-latest now running on the M1 chips... I'll take a look.

[karlhorky]

Ok, switching to macos-latest-large (latest runner with the x86_64 arch) failed, I'm thinking it's because large runners would need to be enabled, which is likely unwanted because they cost money IIUC:

Switching to macos-13 is working though, done in c92c5a0

(an alternative would be to update the Node.js versions in the test matrix to only test versions that are available with Darwin arm64, happy to do that if preferred)

[karlhorky]

Also upgraded to actions/checkout@v4 and actions/setup-node@v4:

• f91d921