Bump python version

Author: gentlegiantJGC

.github/workflows/python-build.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: windows-latest
     strategy:
       matrix:
-        python-version: ['3.9']
+        python-version: ['3.10']
 
     steps:
     - uses: actions/checkout@v4

.github/workflows/python-stylecheck.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.9']
+        python-version: ['3.10']
 
     steps:
     - uses: actions/checkout@v4

.github/workflows/python-unittests.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.9']
+        python-version: ['3.10']
 
     steps:
     - uses: actions/checkout@v4

.readthedocs.yml

@@ -3,7 +3,7 @@ version: 2
 build:
   os: ubuntu-22.04
   tools:
-    python: 3.9
+    python: 3.10
 
 python:
   install:

setup.cfg

@@ -15,7 +15,7 @@ platforms = any
 [options]
 zip_safe = False
 include_package_data = True
-python_requires = ~=3.9
+python_requires = ~=3.10
 install_requires =
     numpy~=1.17
     amulet-nbt~=2.0