Update titiler-core requirement from <0.21,>=0.20.0 to >=0.20.0,<0.22

Updates the requirements on [titiler-core](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@0.20.0...0.21.0)

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

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

pyproject.toml

@@ -28,7 +28,7 @@ classifiers = [
     "Topic :: Scientific/Engineering :: GIS",
 ]
 dependencies = [
-    "titiler.core>=0.20.0,<0.21",
+    "titiler.core>=0.20.0,<0.22",
     "titiler.mosaic>=0.20.0,<0.21",
     "geojson-pydantic~=1.0",
     "pydantic>=2.4,<3.0",