chore: update indent-string to ^4.0.0 (from ^3.2.0)

[G-Rath]

This removes the need for @types/indent-string, and allows better deduplication.

[codecov]

Codecov Report

Merging #55 into master will decrease coverage by 74.53%.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           master   #55       +/-   ##
========================================
- Coverage   74.53%    0%   -74.54%     
========================================
  Files           7     1        -6     
  Lines         271     7      -264     
  Branches       81     0       -81     
========================================
- Hits          202     0      -202     
+ Misses         32     7       -25     
+ Partials       37     0       -37

Impacted Files	Coverage Δ
src/commands/help.ts	0% <0%> (-73.34%)	⬇️
src/index.ts
src/util.ts
src/list.ts
src/screen.ts
src/root.ts
src/command.ts

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[G-Rath]

@RasPhilCo any chance of getting this merged? It would be a nice clean win to get everything updated to the latest of indent-string for max deduplication, especially since it's unlikely to see any new majors 🙂

[G-Rath]

@RasPhilCo cheers! Would you be happy if I did the same for semver across the oclif projects? It's currently on 5, and the latest is 6, and it's a pretty well used package.

I've also noticed at least one repo uses cli-ux@4 instead of 5 😬

I guess the better question is: are you happy w/ someone making a bunch of package updates across oclif?

[RasPhilCo]

@G-Rath that'd be great, thanks!