Add pixel definition for sync rescope API error (#7607)

Task/Issue URL:
https://app.asana.com/1/137249556945/project/608920331025315/task/1213002272473269?focus=true

### Description
Adds pixel definition for pixel (`m_sync_rescope_token_error`) which can
fire if the `rescope` API errors inside sync.

### Steps to test this PR
- QA optional

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> <sup>[Cursor Bugbot](https://cursor.com/dashboard?tab=bugbot) is
generating a summary for commit
6d626a3. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Co-authored-by: Craig Russell <1336281+CDRussell@users.noreply.github.com>

Author: CDRussell

…lDefinitions/pixels/sync_promotion.json5 PixelDefinitions/pixels/sync.json5PixelDefinitions/pixels/sync_promotion.json5 renamed to PixelDefinitions/pixels/sync.json5 PixelDefinitions/pixels/sync_promotion.json5 renamed to PixelDefinitions/pixels/sync.json5

@@ -19,5 +19,24 @@
         "triggers": ["other"],
         "suffixes": ["form_factor"],
         "parameters": ["appVersion"]
+    },
+    "m_sync_rescope_token_error": {
+        "description": "Fired when rescoping the sync token fails",
+        "owners": ["CDRussell"],
+        "triggers": ["other"],
+        "suffixes": ["form_factor"],
+        "parameters": [
+            "appVersion",
+            {
+                "key": "code",
+                "description": "The error code returned from the sync service",
+                "type": "string"
+            },
+            {
+                "key": "reason",
+                "description": "The reason for the rescope token failure",
+                "type": "string"
+            }
+        ]
     }
 }

sync/sync-impl/src/main/java/com/duckduckgo/sync/impl/pixels/SyncPixels.kt

@@ -513,6 +513,7 @@ object SyncPixelsRequiringDataCleaning : PixelParamRemovalPlugin {
             SyncPixelName.SYNC_SETUP_PROMO_BOOKMARK_ADDED_DIALOG_SHOWN.pixelName to removeAtb(),
             SyncPixelName.SYNC_SETUP_PROMO_BOOKMARK_ADDED_DIALOG_DISMISSED.pixelName to removeAtb(),
             SyncPixelName.SYNC_SETUP_PROMO_BOOKMARK_ADDED_DIALOG_CONFIRMED.pixelName to removeAtb(),
+            SyncPixelName.SYNC_RESCOPE_TOKEN_FAILURE.pixelName to removeAtb(),
         )
     }
 }