[gimp] build: use libjxl 0.6.1 in flatpak package

[Daniel Novomeský <dnovomesky src gnome org>]

commit 86b29208976d4f83bc9785c536b165223ec3cb56
Author: Daniel Novomesky <dnovomesky gmail com>
Date:   Sat Oct 30 14:07:09 2021 +0200

    build: use libjxl 0.6.1 in flatpak package

 build/flatpak/org.gimp.GIMP-nightly.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/build/flatpak/org.gimp.GIMP-nightly.json b/build/flatpak/org.gimp.GIMP-nightly.json
index 94cccf33bc..5025134aaa 100644
--- a/build/flatpak/org.gimp.GIMP-nightly.json
+++ b/build/flatpak/org.gimp.GIMP-nightly.json
@@ -633,8 +633,8 @@
                 {
                     "type": "git",
                     "url": "https://github.com/libjxl/libjxl.git";,
-                    "tag": "v0.6",
-                    "commit": "25ef9145273eb5fe3db04e196327c77e404308d8"
+                    "tag": "v0.6.1",
+                    "commit": "a205468bc5d3a353fb15dae2398a101dff52f2d3"
                 }
             ]
         },