chore(deps): update dependency ts-morph to v15.1.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ts-morph	15.0.0 -> 15.1.0

---

Release Notes

dsherret/ts-morph

### [`v15.1.0`](https://togithub.com/dsherret/ts-morph/releases/tag/15.1.0) [Compare Source](https://togithub.com/dsherret/ts-morph/compare/15.0.0...15.1.0) ##### Bug Fixes - `DocumentSpan` should attempt to load the source file if it's not loaded yet ([#​1291](https://togithub.com/dsherret/ts-morph/issues/1291)) ([1eda69c](https://togithub.com/dsherret/ts-morph/commit/1eda69c)) - Included symlinked directories when reading a directory ([#​1290](https://togithub.com/dsherret/ts-morph/issues/1290)) ([f1b4ea2](https://togithub.com/dsherret/ts-morph/commit/f1b4ea2)) ##### Features - Add `Symbol#isOptional` method ([#​1285](https://togithub.com/dsherret/ts-morph/issues/1285)) ([c7f3512](https://togithub.com/dsherret/ts-morph/commit/c7f3512)) - Add `Type#isTemplateLiteral` method ([#​1288](https://togithub.com/dsherret/ts-morph/issues/1288)) ([284a7fd](https://togithub.com/dsherret/ts-morph/commit/284a7fd))

---

Configuration

📅 Schedule: Branch creation - "after 10pm,before 6:00am" in timezone Europe/Warsaw, Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

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

🔕 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 Mend Renovate. View repository job log here.