chore(ci): Update Pixi

Author: renovate[bot]

backends/pixi-build-ros/pixi.lock

@@ -19,7 +19,7 @@ scripts = ["../../scripts/activate.sh"]
 
 [dependencies]
 pydantic = ">=2.8.2,<3"
-py_rattler = ">=0.15.0,<0.16"
+py_rattler = ">=0.16,<0.17"
 py-pixi-build-backend = "*"
 
 [pypi-dependencies]