bump version number (#3251)

Co-authored-by: freddydk <freddydk@users.noreply.github.com>

ReleaseNotes.txt

@@ -1,3 +1,5 @@
+6.0.2
+
 6.0.1
 New-AadAppsForBC doesn't work with the newer versions of Microsoft.Graph module (where the type of the accesstoken parameter has changed)
 New-AppSourceSubmission has a new parameter -doNotUpdateVersionNumber to support hotfixes in AppSource for earlier versions

Version.txt

@@ -1 +1 @@
-6.0.1-dev
+6.0.2-dev