FIX: Add posthog lib to avoid opentelemetry issue

Add "posthog==5.4.0" lib to requirements to avoid chromadb issue for lib versions incompatibility with that lib (chromadb  requiere posthog>=2.4.0,<6.0.0 ) which produce error in opentelemetry.

pyproject.toml

@@ -136,6 +136,8 @@ dependencies = [
 
     "moto[s3]>=5.0.26",
 
+    "posthog==5.4.0",
+
 ]
 readme = "README.md"
 requires-python = ">= 3.11, < 3.13.0a1"