chore(deps): bump a2a-go v0.3.6 to v0.3.13#1599

EItanya merged 1 commit intokagent-dev:mainkagent-dev/kagent:mainfrom

jsonmp-k8:chore/bump-a2a-go-v0.3.13jsonmp-k8/kagent:chore/bump-a2a-go-v0.3.13Copy head branch name to clipboard