Fix pybind11 rosdep key (#955)

Signed-off-by: Christoph Fröhlich <christophfroehlich@users.noreply.github.com>

Author: christophfroehlich

rosidl_buffer_py/package.xml

@@ -19,7 +19,7 @@
 
   <depend>rosidl_buffer</depend>
 
-  <build_depend>pybind11</build_depend>
+  <build_depend>pybind11-dev</build_depend>
   <build_depend>python3-dev</build_depend>
 
   <test_depend>ament_lint_auto</test_depend>