Update compatible-mypy to 1.4.x (#1588)

* Update compatible-mypy to 1.4.x
* Updated CI to mypy 1.4.1
* Add code comment & use simpler version dependency
* Added README table line for next relase

Author: intgr

README.md

@@ -49,6 +49,7 @@ We rely on different `django` and `mypy` versions:
 
 | django-stubs   | Mypy version | Django version | Django partial support | Python version |
 |----------------|--------------|----------------|------------------------|----------------|
+| (next release) | 1.4.x        | 4.2            | 4.1, 3.2               | 3.8 - 3.11     |
 | 4.2.1          | 1.3.x        | 4.2            | 4.1, 3.2               | 3.8 - 3.11     |
 | 4.2.0          | 1.2.x        | 4.2            | 4.1, 4.0, 3.2          | 3.7 - 3.11     |
 | 1.16.0         | 1.1.x        | 4.1            | 4.0, 3.2               | 3.7 - 3.11     |

requirements.txt

@@ -8,4 +8,4 @@ Django==4.2.2
 -e .[compatible-mypy]
 
 # Overrides:
-mypy==1.4.0
+mypy==1.4.1

setup.py

@@ -31,8 +31,9 @@ def find_stub_files(name: str) -> List[str]:
     "types-PyYAML",
 ]
 
+# Keep compatible-mypy major.minor version pinned to what we use in CI (requirements.txt)
 extras_require = {
-    "compatible-mypy": ["mypy>=1.3.0,<1.5"],
+    "compatible-mypy": ["mypy==1.4.*"],
 }
 
 setup(