Update apps.json for ProSign v2.6.1

Author: github-actions[bot]

apps.json

@@ -20,6 +20,16 @@
         "https://raw.githubusercontent.com/ProStore-iOS/ProSign/refs/heads/main/gallery/Screenshot5.png"
       ],
       "versions": [
+        {
+          "version": "2.6.1",
+          "date": "2025-10-18T01:15:25+0000",
+          "localizedDescription": "What's new in Version 2.6.1?\n- Add cert status in brackets on the signer view & update to v2.6.1",
+          "downloadURL": "https://github.com/ProStore-iOS/ProSign/releases/download/v2.6.1/com.prostoreios.prosign-unsigned-ios.ipa",
+          "size": 3737526,
+          "sha256": "8118a3b740a135e3637c67c61900384491a21c78152a777bc1baed801e1a22bf",
+          "minOSVersion": "16.0",
+          "fullDate": "20251018011525"
+        },
         {
           "version": "2.6.0",
           "date": "2025-10-18T01:09:06+0000",