Update titiler-mosaic requirement from <0.19,>=0.18.0 to >=0.18.0,<0.20

Updates the requirements on [titiler-mosaic](https://github.com/developmentseed/titiler) to permit the latest version.
- [Release notes](https://github.com/developmentseed/titiler/releases)
- [Changelog](https://github.com/developmentseed/titiler/blob/main/CHANGES.md)
- [Commits](developmentseed/titiler@0.18.0...0.19.0)

---
updated-dependencies:
- dependency-name: titiler-mosaic
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -29,7 +29,7 @@ classifiers = [
 ]
 dependencies = [
     "titiler.core>=0.18.0,<0.19",
-    "titiler.mosaic>=0.18.0,<0.19",
+    "titiler.mosaic>=0.18.0,<0.20",
     "geojson-pydantic~=1.0",
     "pydantic>=2.4,<3.0",
     "pydantic-settings~=2.0",