[gimp-web] downloads: set release date for 2.99.4 update for Microsoft Windows installer

[Michael Schumacher <schumaml src gnome org>]

commit 3a74ad641b9e459356f337e57bc723e4c01dc8d0
Author: Michael Schumacher <schumaml gmx de>
Date:   Sun Dec 27 18:55:55 2020 +0100

    downloads: set release date for 2.99.4 update for Microsoft Windows installer

 content/gimp_versions.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/content/gimp_versions.json b/content/gimp_versions.json
index 1f8c31fd..5e588d9b 100644
--- a/content/gimp_versions.json
+++ b/content/gimp_versions.json
@@ -452,7 +452,7 @@
             ],
             "windows": [
                  {
-                    "date": "2020-12-26",
+                    "date": "2020-12-27",
                     "filename": "gimp-2.99.4-setup-1.exe",
                     "sha512": 
"2b9eeeca89ae4de50e519d16cddc53d5f682c21cebd19ad3f256361b1bba50e0ae7c9d76c36cbf392e265758931a58d00951789da3f301987632847d41fb005a",
                     "sha256": "243bd00741de1e25a91ec1ae5af13d9a1acf6dacd1486840274e1dce0a79ab90",