Added Dropbox version 112.4.321. (#5652)

manifests/Dropbox/Dropbox/112.4.321.yaml

@@ -0,0 +1,28 @@
+# ================== General ==================
+Id: Dropbox.Dropbox
+Publisher: Dropbox
+Name: Dropbox
+Author: Dropbox
+Description: Organize all your team’s content, tune out distractions, and get everyone coordinated with the world’s first smart workspace.
+AppMoniker: Dropbox
+Tags: cloud, online, storage, dropbox, pictures, files
+
+# ================== License ==================
+Homepage: https://www.dropbox.com
+License: Copyright (c) Dropbox, Inc.
+LicenseUrl: https://www.dropbox.com/terms
+
+# ================= Installer =================
+MinOSVersion: 10.0.0.0
+#Channel: stable                # Channel is not supported in this preview (5/24/2020)
+Version: 112.4.321
+
+InstallerType: nullsoft 
+Installers:
+  - Arch: x86
+    Url: https://clientupdates.dropboxstatic.com/dbx-releng/client/Dropbox%20112.4.321%20Offline%20Installer.exe   # https://www.dropbox.com/downloading?full=1&os=win
+    Sha256: C7C062797391E48DB06A11E38692B98F6EA6EDB56AB23ED107BD6F890207DCAF
+    Scope: machine
+    Language: en-US
+    
+# ManifestVersion: 0.1.0