flatpak: Change obs-deps tag to 2022-07-29

2022-07-28 was removed.

CI/flatpak/com.obsproject.Studio.json

@@ -250,8 +250,8 @@
           "type": "git",
           "dest": "obs-deps",
           "url": "https://github.com/obsproject/obs-deps.git",
-          "tag": "2022-07-28",
-          "commit": "d0b513a4eef5123d11278d35279f179c22812da4"
+          "tag": "2022-07-29",
+          "commit": "71df2dddb0eb732496448f626553b61bcda8f993"
         },
         {
           "type": "shell",