add python3.14 and remove support of python 3.11

Author: cadenmyers13

pyproject.toml

@@ -17,7 +17,7 @@ maintainers = [
 description = "Python bindings to the ObjCryst++ library."
 keywords = ['objcryst', 'atom structure crystallography', 'powder diffraction']
 readme = "README.rst"
-requires-python = ">=3.11, <3.14"
+requires-python = ">=3.12, <3.15"
 classifiers = [
         'Development Status :: 5 - Production/Stable',
         'Environment :: Console',
@@ -30,9 +30,9 @@ classifiers = [
         'Operating System :: POSIX',
         'Operating System :: Unix',
         'Programming Language :: C++',
-        'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12',
         'Programming Language :: Python :: 3.13',
+        'Programming Language :: Python :: 3.14',
         'Topic :: Scientific/Engineering :: Physics',
         'Topic :: Scientific/Engineering :: Chemistry',
         'Topic :: Software Development :: Libraries',