enums.xml: fix label mismatch in the DialogName enum

Bug: none
Change-Id: I26b90e691dbe061977ccece3ad3235cad1b38716
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2557078
Auto-Submit: Alex Ilin <alexilin@chromium.org>
Reviewed-by: David Roger <droger@chromium.org>
Commit-Queue: David Roger <droger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#830553}

tools/metrics/histograms/enums.xml

@@ -17174,7 +17174,8 @@ metrics consent we also won't be able to send UMA metrics. -->
   <int value="101" label="App Uninstall"/>
   <int value="102" label="Print Job Confirmation"/>
   <int value="103" label="Crostini Recovery Dialog"/>
-  <int value="104" label="Signin Reauth Dialog"/>
+  <int value="104" label="Parent Permission ChromeOS"/>
+  <int value="105" label="Signin Reauth Dialog"/>
 </enum>
 
 <enum name="DialogOriginRelationship">