16.6.2-p.5

What's Changed

• Enable variable definition directive parser test by @glen-84 in #10266
• Fix Fusion composition crash on repeated @key in Apollo Federation schemas by @michaelstaib in #10269
• Add fragment arguments support to the GraphQL syntax layer by @glen-84 in #10270
• Add Nitro Agent Task Manager by @michaelstaib in #10252
• Azure Service Bus transport hardening and test coverage by @PascalSenn in #10271
• Validate fragment arguments and scope fragment variables by @glen-84 in #10272
• Fix undefined union member type crash in mutable schema parser by @michaelstaib in #10274

Full Changelog: 16.6.2-p.4...16.6.2-p.5