Update citation.cff and pyproject.toml

CITATION.cff

@@ -8,7 +8,7 @@ authors:
   given-names: Rodja
   orcid: https://orcid.org/0009-0009-4735-6227
 title: 'NiceGUI: Web-based user interfaces with Python. The nice way.'
-version: v1.4.13
-date-released: '2024-01-29'
+version: v1.4.15
+date-released: '2024-02-09'
 url: https://github.com/zauberzeug/nicegui
-doi: 10.5281/zenodo.10581508
+doi: 10.5281/zenodo.10641045

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "nicegui"
-version = "1.4.14-dev"
+version = "1.4.15-dev"
 description = "Create web-based user interfaces with Python. The nice way."
 authors = ["Zauberzeug GmbH <info@zauberzeug.com>"]
 license = "MIT"