Merge pull request #5241 from vseanreesermsft/branding-8.0.21-2025-09-02-0936-dd3a51a1-2395-47bc-b042-f0391995fe3b

Update branding to 8.0.21

Author: LeafShi1

eng/Versions.props

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <MajorVersion>8</MajorVersion>
     <MinorVersion>0</MinorVersion>
-    <PatchVersion>20</PatchVersion>
+    <PatchVersion>21</PatchVersion>
     <PreReleaseVersionLabel>servicing</PreReleaseVersionLabel>
     <PreReleaseVersionIteration>
     </PreReleaseVersionIteration>