[5.2] Improve django.http.request.MediaType (#2631)

Author: sobolevn

django-stubs/http/request.pyi

@@ -202,6 +202,10 @@ class MediaType:
     @property
     def is_all_types(self) -> bool: ...
     def match(self, other: str) -> bool: ...
+    @cached_property
+    def quality(self) -> float: ...
+    @property
+    def specificity(self) -> int: ...
 
 @overload
 def bytes_to_text(s: None, encoding: str) -> None: ...

scripts/stubtest/allowlist.txt

@@ -398,6 +398,7 @@ django.http.HttpRequest.headers
 django.http.HttpResponse.text
 django.http.request.HttpRequest.accepted_types
 django.http.request.HttpRequest.headers
+django.http.request.MediaType.quality
 django.http.response.HttpResponse.text
 django.middleware.csrf.CsrfViewMiddleware.allowed_origin_subdomains
 django.middleware.csrf.CsrfViewMiddleware.allowed_origins_exact

scripts/stubtest/allowlist_todo_django52.txt

@@ -172,8 +172,6 @@ django.http.QueryDict.pop
 django.http.StreamingHttpResponse.text
 django.http.request.HttpRequest.accepted_type
 django.http.request.HttpRequest.get_preferred_type
-django.http.request.MediaType.quality
-django.http.request.MediaType.specificity
 django.http.request.QueryDict.pop
 django.http.response.StreamingHttpResponse.text
 django.template.Library.simple_block_tag