Update configs for snap (#12031)

Draft until time

Author: dibarbet

eng/Versions.props

@@ -30,7 +30,7 @@
     imported. This OK because we want to just have an obvious salt for a local build.
   -->
   <PropertyGroup>
-    <VsixVersionPrefix>17.15.1</VsixVersionPrefix>
+    <VsixVersionPrefix>17.15.2</VsixVersionPrefix>
     <AddinMajorVersion>17.15</AddinMajorVersion>
     <AddinVersion>$(AddinMajorVersion)</AddinVersion>
     <AddinVersion Condition="'$(OfficialBuildId)' != ''">$(AddinVersion).$(OfficialBuildId)</AddinVersion>

eng/config/PublishData.json

@@ -28,8 +28,8 @@
         "NonShipping"
       ],
       "vsBranch": "main",
-      "insertionCreateDraftPR": false,
-      "insertionTitlePrefix": "[d17.15 P1]"
+      "insertionCreateDraftPR": true,
+      "insertionTitlePrefix": "[dNext.1]"
     },
     "release/dev17.6": {
       "nugetKind": [
@@ -107,6 +107,15 @@
       "vsBranch": "rel/d17.14",
       "insertionCreateDraftPR": false,
       "insertionTitlePrefix": "[d17.14 P3]"
+    },
+    "release/dev-next": {
+      "nugetKind": [
+        "Shipping",
+        "NonShipping"
+      ],
+      "vsBranch": "main",
+      "insertionCreateDraftPR": false,
+      "insertionTitlePrefix": "[dNext]"
     }
   }
 }