Bump up django-upgrade

.pre-commit-config.yaml

@@ -21,10 +21,10 @@ repos:
         args: [--py310-plus]
 
   - repo: https://github.com/adamchainz/django-upgrade
-    rev: "1.12.0"
+    rev: "1.13.0"
     hooks:
       - id: django-upgrade
-        args: [--target-version, "4.1"]
+        args: [--target-version, "4.2"]
 
   - repo: https://github.com/psf/black
     rev: 22.10.0

core/signatures.py

@@ -87,9 +87,9 @@ class HttpSignature:
             if header_name == "(request-target)":
                 value = f"{request.method.lower()} {request.path}"
             elif header_name == "content-type":
-                value = request.META["CONTENT_TYPE"]
+                value = request.headers["content-type"]
             elif header_name == "content-length":
-                value = request.META["CONTENT_LENGTH"]
+                value = request.headers["content-length"]
             else:
                 value = request.META["HTTP_%s" % header_name.upper().replace("-", "_")]
             headers[header_name] = value

tests/conftest.py

@@ -226,8 +226,10 @@ def api_token(identity) -> Token:
 @pytest.fixture
 def api_client(api_token):
     return Client(
-        HTTP_AUTHORIZATION=f"Bearer {api_token.token}",
-        HTTP_ACCEPT="application/json",
+        headers={
+            "authorization": f"Bearer {api_token.token}",
+            "accept": "application/json",
+        }
     )