[gimp-web] downloads: add experimental GIMP 2.10.22 for macOS

[Michael Schumacher <schumaml src gnome org>]

commit 2e98bbe2b53ec4f8b1340568bb0af1d1f32c01fc
Author: Michael Schumacher <schumaml gmx de>
Date:   Thu Dec 10 21:02:02 2020 +0100

    downloads: add experimental GIMP 2.10.22 for macOS

 content/gimp_versions.json | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/content/gimp_versions.json b/content/gimp_versions.json
index 91390133..ab5d1fc9 100644
--- a/content/gimp_versions.json
+++ b/content/gimp_versions.json
@@ -19,6 +19,15 @@
                     "min-support": "Windows 7",
                     "build-id": "org.gimp.GIMP_official"
                 }
+            ],
+            "macos": [
+                {
+                    "filename": "gimp-2.10.22-x86_64-experimental.dmg",
+                    "sha512": 
"20e9956f112709ac9de734184ae5ebd8112a8b5b1270da2d1e897146c3e9d16ff40cea6e270b61f4304d54a60e699d609b41b75f787b2f8a6e3475dd584561ad",
+                    "sha256": "ae83a5d90e057902b85a8fbeff0765df2fee90a996d6323ca5521c7aeac6a73b",
+                    "min-support": "macOS 10.9 Mavericks",
+                    "comment": "Experimental GIMP 2.10.22 build for macOS - not notarized yet, so you'll see 
the 'Can't be opened because Apple cannot check it for malicious software' dialog"
+                }
             ]
         },
         {