[chores] Fixed test suite, updated README and setup.py

Author: pandafy

README.rst

@@ -39,7 +39,7 @@ Compatibility with DRF, Django and Python
 
 ========================  ============================ ==================== ==================================
 DRF-gis version           DRF version                  Django version       Python version
-**1.1.x**                 **3.12** up to **3.14**      **3.2, 4.2 to 5.1**  **3.8** to **3.11**
+**1.1.x**                 **3.12** up to **3.15**      **3.2, 4.2 to 5.1**  **3.8** to **3.12**
 **1.0.x**                 **3.10** up to **3.13**      **2.2 to 4.0**       **3.6** to **3.9**
 **0.18.x**                **3.10** up to **3.13**      **2.2 to 4.0**       **3.6** to **3.9**
 **0.17.x**                **3.10** up to **3.12**      **2.2 to 3.1**       **3.6** to **3.8**

setup.py

@@ -40,6 +40,7 @@
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
         'Programming Language :: Python :: 3 :: Only',
     ],
     project_urls={

tox.ini

@@ -21,9 +21,11 @@ deps =
     django32: Django~=3.2.0
     django42: Django~=4.2.0
     django50: Django~=5.0.0
+    django51: Django~=5.1.0
     djangorestframework312: djangorestframework~=3.12.0
     djangorestframework313: djangorestframework~=3.13.0
     djangorestframework314: djangorestframework~=3.14.0
+    djangorestframework315: djangorestframework~=3.15.0
     -rrequirements-test.txt
     pytest: pytest
     pytest: pytest-django