GraphBit Python Version v0.6.7

What's Changed

• [Feature] Introduce AgentNodeConfig for agent nodes by @JunaidHossain04 in #488
• [Feature] Conditional Node Support by @annur-infinitibit in #487
• [Test] Tests for conditional node + doctests by @annur-infinitibit in #489
• [Docs] conditional node docs updated by @annur-infinitibit in #490
• [Feature] implement end-to-end workflow streaming architecture with Python bindings by @JunaidHossain04 in #494
• [Fix] Agent Tool output passing by @annur-infinitibit in #495
• [Refactor] Core Graph + Type in Core Refactoring and Optimization by @annur-infinitibit in #493
• [Feature] Implemented anthropic prompt caching - available in node agent and llmclient methods by @rupakInfinitiBit in #492

Full Changelog: GraphBit_Python_v0.6.6...Graphbit_Python_v0.6.7