Safari 26.2 supports Partitioned Cookies (#28470)

* Update set-cookie partitioned for Safari

Safari supports this in Safari 26.2:
https://developer.apple.com/documentation/safari-release-notes/safari-26_2-release-notes#Privacy

* Keep previous Safari entry for partitioned cookies.json

---------

Co-authored-by: Claas Augner <495429+caugner@users.noreply.github.com>

Author: jdatapple

http/headers/Set-Cookie.json

@@ -142,11 +142,16 @@
               "oculus": "mirror",
               "opera": "mirror",
               "opera_android": "mirror",
-              "safari": {
-                "version_added": "18.4",
-                "version_removed": "18.5",
-                "impl_url": "https://webkit.org/b/292975"
-              },
+              "safari": [
+                {
+                  "version_added": "26.2"
+                },
+                {
+                  "version_added": "18.4",
+                  "version_removed": "18.5",
+                  "impl_url": "https://webkit.org/b/292975"
+                }
+              ],
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
               "webview_android": {