chore(deps) bump penlight from 1.7.0 to 1.8.0
chore(deps) bump penlight from 1.7.0 to 1.8.0

### Summary

#### New features

  - `pretty.debug` quickly dumps a set of values to stdout for debug purposes

#### Changes

  - `pretty.write`: now also sorts non-string keys [#319](https://github.com/Tieske/Penlight/pull/319)
  - `stringx.count` has an extra option to allow overlapping matches
    [#326](https://github.com/Tieske/Penlight/pull/326)
  - added an extra changelog entry for `types.is_empty` on the 1.6.0 changelog, due
    to additional fixed behaviour not called out appropriately [#313](https://github.com/Tieske/Penlight/pull/313)
  - `path.packagepath` now returns a proper error message with names tried if
    it fails

#### Fixes

  - Fix: `stringx.rfind` now properly works with overlapping matches
    [#314](https://github.com/Tieske/Penlight/pull/314)
  - Fix: `package.searchpath` (in module `pl.compat`)
    [#328](https://github.com/Tieske/Penlight/pull/328)
  - Fix: `path.isabs` now reports drive + relative-path as `false`, eg. "c:some/path" (Windows only)
  - Fix: OpenResty coroutines, used by `dir.dirtree`, `pl.lexer`, `pl.permute`. If
    available the original coroutine functions are now used [#329](https://github.com/Tieske/Penlight/pull/329)
  - Fix: in `pl.strict` also predefine global `_PROMPT2`
  - Fix: in `pl.strict` apply `tostring` to the given name, in case it is not a string.
  - Fix: the lexer would not recognize numbers without leading zero; "-.123".
    See [#315](https://github.com/Tieske/Penlight/issues/315)

Kong/kong,Kong/kong,Kong/kong