fix(deps): update dependency ts-morph to v16

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ts-morph	15.1.0 -> 16.0.0

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Release Notes

dsherret/ts-morph

### [`v16.0.0`](https://togithub.com/dsherret/ts-morph/releases/tag/16.0.0) [Compare Source](https://togithub.com/dsherret/ts-morph/compare/15.1.0...16.0.0) ##### Features - add `Type#isNever()` ([ac0db0d](https://togithub.com/dsherret/ts-morph/commit/ac0db0d)), closes [#​1303](https://togithub.com/dsherret/ts-morph/issues/1303) - add `Type#isReadonlyArray()` and `Type#isArray()` also includes readonly arrays ([f1d5c43](https://togithub.com/dsherret/ts-morph/commit/f1d5c43)), closes [#​1306](https://togithub.com/dsherret/ts-morph/issues/1306) [#​1305](https://togithub.com/dsherret/ts-morph/issues/1305) - upgrade to TS 4.8 ([#​1316](https://togithub.com/dsherret/ts-morph/issues/1316)) ([8a87a1b](https://togithub.com/dsherret/ts-morph/commit/8a87a1b)) ##### BREAKING CHANGES - Upgraded to TS 4.8 - Decorators are now modifiers due to TS 4.8 - `ts.createX` functions seem almost completely deprecated in TS 4.8, so make sure to update your code to use the `traversal.context.createX` functions instead - `Type#isArray()` returns true for readonly arrays

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