fix(security): pin litellm<1.82.6 to mitigate supply chain attack (#356)

Versions >=1.82.6 are compromised via supply chain attack
(BerriAI/litellm#21971). The previous spec (^1.67.2) had no upper bound
protection.


---

## Generated Summary

- Updated litellm dependency from "^1.67.2" to "==1.79.3" to target a
specific release version.
- Added an optional dependency for logfire with version "^3.20.0",
expanding logging capabilities.

This summary was generated with ❤️ by
[rigging](https://docs.dreadnode.io/rigging/)

Author: GangGreenTemperTatum

poetry.lock

@@ -15,7 +15,7 @@ python = ">=3.10,<3.14"
 pydantic = "^2.7.3"
 pydantic-xml = "<=2.17.0"
 loguru = "^0.7.2"
-litellm = "^1.67.2"
+litellm = "==1.79.3"
 xmltodict = "^0.13.0"
 colorama = "^0.4.6"
 jsonpath-ng = "^1.7.0"
@@ -36,6 +36,7 @@ websockets = { version = "^13.0", optional = true }
 
 elasticsearch = { version = "^8.13.2", optional = true }
 pandas = { version = "^2.2.2", optional = true }
+logfire = { version = "^3.20.0", optional = true }
 
 [tool.poetry.extras]
 data = ["pandas", "elasticsearch"]