fix(deps): update dependency python-dotenv to v1.2.1 (#9)

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

Author: renovate[bot]

pyproject.toml

@@ -7,7 +7,7 @@ requires-python = ">=3.13,<3.14" # for scipy dep of reachy-mini
 dependencies = [
     "reachy-mini[mujoco]==1.0.0",
     "openai-agents==0.4.0",
-    "python-dotenv==1.1.1",
+    "python-dotenv==1.2.1",
     "reachy-mini-dances-library==0.2.1",
 ]