Update dependency typedoc to v0.20.15

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
typedoc (source)	0.20.14 -> 0.20.15

---

Release Notes

TypeStrong/TypeDoc

### [`v0.20.15`](https://togithub.com/TypeStrong/TypeDoc/releases/v0.20.15) [Compare Source](https://togithub.com/TypeStrong/TypeDoc/compare/v0.20.14...v0.20.15) ##### Bug Fixes - Crash when converting `@types/ws` ([b8071c6](https://togithub.com/TypeStrong/TypeDoc/commit/b8071c6785790f5104dec197b02d264d0c75ffac)), closes [#​1463](https://togithub.com/TypeStrong/TypeDoc/issues/1463) - excludeNotDocumented incorrectly ignored some symbols ([1d03d4b](https://togithub.com/TypeStrong/TypeDoc/commit/1d03d4bd907e881df0bf9bf7e94b65991d791d92)), closes [#​1465](https://togithub.com/TypeStrong/TypeDoc/issues/1465) - Support for JSDoc `[@enum](https://togithub.com/enum)` tags ([66c1652](https://togithub.com/TypeStrong/TypeDoc/commit/66c1652d70a47b4cc335efe0ebbe2403095633ed)), closes [#​1464](https://togithub.com/TypeStrong/TypeDoc/issues/1464) ##### Features - Support for excludeInternal ([4f4d85c](https://togithub.com/TypeStrong/TypeDoc/commit/4f4d85ccd37267d7aad970fd693fa9723f022a82)), closes [#​1469](https://togithub.com/TypeStrong/TypeDoc/issues/1469) - **category:** add option to read more categories from doc ([18d83f6](https://togithub.com/TypeStrong/TypeDoc/commit/18d83f60a1cd52adab525319219d3bd417334a81)) ##### Thanks! - [@​brunozoric](https://togithub.com/brunozoric)

---

Renovate configuration

:date: Schedule: At any time (no schedule defined).

:vertical_traffic_light: Automerge: Enabled.

:recycle: Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

:no_bell: Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

This PR has been generated by WhiteSource Renovate. View repository job log here.

[codecov[bot]]

Codecov Report

Merging #355 (f23117d) into master (7373695) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #355   +/-   ##
=======================================
  Coverage   90.00%   90.00%           
=======================================
  Files           1        1           
  Lines          10       10           
  Branches        0        1    +1     
=======================================
  Hits            9        9           
  Misses          1        1           

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 7373695...f23117d. Read the comment docs.