azure: Update: The retirement date for default outbound access has been extended to March 31, 2026.

The retirement date for default outbound access has been extended to March 31, 2026. This change aligns with the broader Azure Virtual Network (VNet) update and replaces the previously communicated September 30, 2025 date. The provided excerpt is truncated before describing what starts on March 31, 2026.

• Source: Azure Updates