DOC: fix minimum dependency versions in getting started guide (#9306)

Author: kmuehlbauer

doc/getting-started-guide/installing.rst

@@ -8,8 +8,8 @@ Required dependencies
 
 - Python (3.9 or later)
 - `numpy <https://www.numpy.org/>`__ (1.23 or later)
-- `packaging <https://packaging.pypa.io/en/latest/#>`__ (22 or later)
-- `pandas <https://pandas.pydata.org/>`__ (1.5 or later)
+- `packaging <https://packaging.pypa.io/en/latest/#>`__ (23.1 or later)
+- `pandas <https://pandas.pydata.org/>`__ (2.0 or later)
 
 .. _optional-dependencies: