Update typer requirement from <0.18.0,>=0.15.1 to >=0.15.1,<0.21.0

Updates the requirements on [typer](https://github.com/fastapi/typer) to permit the latest version.
- [Release notes](https://github.com/fastapi/typer/releases)
- [Changelog](https://github.com/fastapi/typer/blob/master/docs/release-notes.md)
- [Commits](https://github.com/fastapi/typer/compare/0.15.1...0.20.1)

---
updated-dependencies:
- dependency-name: typer
  dependency-version: 0.20.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

pyproject.toml

@@ -17,7 +17,7 @@ classifiers = [
   "Programming Language :: Python :: 3.12",
 ]
 dependencies = [
-  "typer>=0.15.1,<0.18.0",
+  "typer>=0.15.1,<0.21.0",
   "playwright>=1.41.0",
   "rich>=13.7.0",
   "pushbullet.py>=0.12.0",