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

[Michael Schumacher <schumaml src gnome org>]

commit 1af79e0525fc8c6ff3043118a69aad574a64bf8b
Author: Michael Schumacher <schumaml gmx de>
Date:   Wed Dec 23 19:46:58 2020 +0100

    downloads: add notarized GIMP 2.10.22 for macOS

 content/gimp_versions.json | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)
---
diff --git a/content/gimp_versions.json b/content/gimp_versions.json
index f8f97e68..7a6739a7 100644
--- a/content/gimp_versions.json
+++ b/content/gimp_versions.json
@@ -21,13 +21,24 @@
                 }
             ],
             "macos": [
+                {
+                    "date": "2020-12-24",
+                    "filename": "gimp-2.10.22-x86_64-1.dmg",
+                    "sha512": 
"5eb3f3870fb3c8945a280d81ac74fe558d78af66103a13d948332cf023a5e94ebc18e9b4f2bc0f12078e742f0ffc366cd2cb2e8cfd8a6668c32f5a6e51668b04",
+                    "sha256": "c57f0203a89bd347c5b5958a79754debf33a9b458bdba68fa0788e22f4cc8fae",
+                    "min-support": "macOS 10.9 Mavericks",
+                    "build-id": "org.gimp.GIMP_official",
+                    "comment" : "GIMP 2.10.22 build for macOS - has known performance issues on Big Sur",
+                    "revision": 1
+                },
                 {
                     "date": "2020-12-20",
                     "filename": "gimp-2.10.22-x86_64.dmg",
                     "sha512": 
"6826b45e14955d1bf1edf03de2494f6dc9833ab54388e12969a5b34f41d216152a28b4b9c4c56b0485d80f6b918c3eb6c61f1d69e9b6c72f3ca3604bddf00e54",
                     "sha256": "8e3b2bf8ad9c095324c1c7df2e03aaa3e1edf432efbda67baad5dbb780a95280",
                     "min-support": "macOS 10.9 Mavericks",
-                    "build-id": "org.gimp.GIMP_official"
+                    "build-id": "org.gimp.GIMP_official",
+                    "comment" : "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"
                 },
                 {
                     "filename": "gimp-2.10.22-x86_64-experimental.dmg",