feat: tool calling for Bedrock's Claude and General LLM Agent (#955)

.changeset/brave-cherries-juggle.md

packages/community/src/llm/bedrock/base.ts

packages/community/src/llm/bedrock/types.ts

packages/community/src/llm/bedrock/utils.ts

packages/llamaindex/src/agent/anthropic.ts

packages/llamaindex/src/agent/base.ts

packages/llamaindex/src/agent/index.ts

packages/llamaindex/src/agent/llm.ts

packages/llamaindex/src/agent/openai.ts

packages/llamaindex/src/agent/utils.ts

packages/llamaindex/src/llm/index.ts