Update min. version of python to v3.11

Author: trey-stafford

pyproject.toml

@@ -7,7 +7,7 @@ authors = [
 description = "Harmonized access to (pre)OIB/IceSAT/IceSAT2 data"
 readme = "README.md"
 license.file = "LICENSE"
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 classifiers = [
   "Development Status :: 1 - Planning",
   "Intended Audience :: Science/Research",
@@ -17,7 +17,6 @@ classifiers = [
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
   "Programming Language :: Python :: 3 :: Only",
-  "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Topic :: Scientific/Engineering",