fix: Update outdated and vulnerable packages

[tonyganchev]

Changes

• All dev dependencies raised to latest versions.
• Added rollup ^4.0.0 as a supported peer dependency.
• Fixed typing errors in test.
• Added myself as contributor

Leftovers

# npm audit report

request  *
Severity: moderate
Server-Side Request Forgery in Request - https://github.com/advisories/GHSA-p8p7-x288-28g6
Depends on vulnerable versions of tough-cookie
No fix available
node_modules/request
  coveralls  *
  Depends on vulnerable versions of request
  node_modules/coveralls

tough-cookie  <4.1.3
Severity: moderate
tough-cookie Prototype Pollution vulnerability - https://github.com/advisories/GHSA-72xf-g2v4-qvf3
No fix available
node_modules/tough-cookie

3 moderate severity vulnerabilities

Some issues need review, and may require choosing
a different dependency.

Testing

Ran the test included in the project.

[NickHeap2]

@bennypowers , @deebloo , @asyncLiz any chance of getting this merged so we can update rollup? Or @tonyganchev did you find an alternative to this that is still supported?