chore!: Normalize repository, dropping node <10.13 support

[sttk]

This PR updates this project:

• Updates dependency versions
• Updates GitHub Actions files
• Adds, changes and deletes some project files
• Drops arr-flatten, arr-map, collection-map, es6-weak-map, object.defaults and object.reduce from dependencies

NOTE: Be careful that this package depends on bach which will be bumped up.

Closes #96

[phated]

Some changes still needed

[sttk]

@phated I've modified what you pointed out. Please review this PR again.

[sttk]

@phated
Sorry for the delay in the treatment. I've upgrade vinyl-fs version to 4.0.0.

[ecraig12345]

@phated Is there a plan to release this new version soon? I work on another library that depends on undertaker, and the old version depends (indirectly) on es5-ext which is flagged as malicious by some systems due to a protest message.

[phated]

@ecraig12345 I think you meant to subscribe to #101 - The release will be made when we have free time, as the project is currently under-funded since almost all sponsors fell off during the pandemic. A release requires making sure this works under gulp 5 preparations.