Upgrade pyqt5 to 5.15 to avoid incorrectly specified dependencies in pyqt5 5.14.0

Author: manumerous

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "vpselector"
-version = "1.0.0"
+version = "1.0.1"
 description = "Visualize and interactively select time-series data from a pandas DataFrame."
 readme = "README.md"
 requires-python = ">=3.8"
@@ -32,7 +32,7 @@ classifiers = [
 
 dependencies = [
   "pandas >= 1.1.5",
-  "PyQt5==5.14.0",
+  "PyQt5==5.15.0",
   "matplotlib>=3.7.1",
   "seaborn>=0.11.1",
   "overrides>=7.3.1",