Typescript target `esnext` has Error type that conflicts with MigrationError extension

[canadaduane]

When compiling a project that includes postgres-migrations with target esnext configured in tsconfig.json, I get the following error:

> tsc

../node_modules/.pnpm/postgres-migrations@5.3.0/node_modules/postgres-migrations/dist/types.d.ts:50:5 - error TS2416: Property 'cause' in type 'MigrationError' is not assignable to the same property in base type 'Error'.
  Type 'string' is not assignable to type 'Error'.

50     cause?: string;
       ~~~~~

I believe the type definition of Error has changed based on this accepted language proposal: https://github.com/tc39/proposal-error-cause

Therefore, the following string type now conflicts with its base class:

postgres-migrations/src/types.ts

Line 65 in 5a73373

public cause?: string

[ThomWright]

Thank you for the issue.

Looking at how cause is used in the code, it seems like it should probably be an Error anyway!

Technically this will be a backwards-incompatible change, so I'll have to think about how I release this.

Would you be able to submit a PR?

[canadaduane]

Would you be able to submit a PR?

I probably won't be able to right now (I've settled on an es2020 target) but may be able to get around to it when updating to esnext (probably a few months from now).