feat: add support for azure dynamic session tool (#942)

.changeset/fresh-bobcats-joke.md

examples/agent/azure_dynamic_session.ts

examples/package.json

packages/env/src/fs/node.ts

packages/env/src/index.ts

packages/llamaindex/package.json

packages/llamaindex/src/index.ts

...ages/llamaindex/src/tools/AzureDynamicSessionTool.node.ts

pnpm-lock.yaml