Update branding to 8.0.21#36696

cincuranet merged 1 commit intodotnet:release/8.0dotnet/efcore:release/8.0from

vseanreesermsft:branding-8.0.21-2025-09-02-0936-3164bd9a-6325-445d-bf16-f9856146c90dvseanreesermsft/efcore:branding-8.0.21-2025-09-02-0936-3164bd9a-6325-445d-bf16-f9856146c90dCopy head branch name to clipboard