build: drop support for python 3.9 and add support for 3.11 and 3.12

Author: mrava87

docs/source/installation.rst

@@ -9,7 +9,7 @@ The PyLops project strives to create a library that is easy to install in
 any environment and has a very limited number of dependencies.
 Required dependencies are limited to:
 
-* Python 3.9 or greater
+* Python 3.10 or greater
 * `NumPy <http://www.numpy.org>`_
 * `SciPy <http://www.scipy.org/scipylib/index.html>`_
 

environment.yml

@@ -2,6 +2,6 @@ name: pylops
 channels:
   - defaults
 dependencies:
-  - python>=3.9.0
+  - python>=3.11.0
   - numpy>=1.21.0
   - scipy>=1.14.0

pyproject.toml

@@ -24,9 +24,9 @@ classifiers = [
     "Natural Language :: English",
     "Operating System :: OS Independent",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.8",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "Topic :: Scientific/Engineering :: Mathematics",
 ]
 dependencies = [