fix(test): support pyproject for pip projects

Author: armandsauzay

test/action.yaml

@@ -51,10 +51,10 @@ runs:
           echo "manager=poetry" >> $GITHUB_OUTPUT
         elif [[ -f "uv.lock" ]]; then
           echo "manager=uv" >> $GITHUB_OUTPUT
-        elif [[ -f "requirements.txt" ]]; then
+        elif [[ -f "requirements.txt" ]] || [[ -f "pyproject.toml" ]]; then
           echo "manager=pip" >> $GITHUB_OUTPUT
         else
-          echo "::error::No package manager configuration found (poetry.lock/uv.lock/requirements.txt)"
+          echo "::error::No package manager configuration found (poetry.lock/uv.lock/requirements.txt/pyproject.toml)"
           exit 1
         fi