fix(deps): update dependency openai-agents to v0.4.2 (#3)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pyproject.toml

@@ -6,7 +6,7 @@ readme = "README.md"
 requires-python = ">=3.13,<3.14" # for scipy dep of reachy-mini
 dependencies = [
     "reachy-mini[mujoco]==1.0.0",
-    "openai-agents==0.4.0",
+    "openai-agents==0.4.2",
     "python-dotenv==1.2.1",
     "reachy-mini-dances-library==0.2.1",
 ]