Update configs for preview 2 snap

eng/Versions.props

@@ -8,7 +8,7 @@
     <MajorVersion>3</MajorVersion>
     <MinorVersion>5</MinorVersion>
     <PatchVersion>0</PatchVersion>
-    <PreReleaseVersionLabel>beta2</PreReleaseVersionLabel>
+    <PreReleaseVersionLabel>beta3</PreReleaseVersionLabel>
     <VersionPrefix>$(MajorVersion).$(MinorVersion).$(PatchVersion)</VersionPrefix>
     <SemanticVersioningV1>true</SemanticVersioningV1>
     <!-- 

eng/config/PublishData.json

@@ -63,6 +63,15 @@
       "vsBranch": "rel/d16.5",
       "vsMajorVersion": 16
     },
+    "release/dev16.5-preview2-vs-deps": {
+      "nugetKind": ["Shipping", "NonShipping"],
+      "version": "3.5.*",
+      "nuget": [ "https://dotnet.myget.org/F/roslyn/api/v2/package" ],
+      "vsix": [ "https://dotnet.myget.org/F/roslyn/vsix/upload" ],
+      "channels": [ "dev16.5", "dev16.5p2" ],
+      "vsBranch": "rel/d16.5",
+      "vsMajorVersion": 16
+    },
     "master-vs-deps": {
       "nugetKind": ["Shipping", "NonShipping"],
       "version": "3.5.*",