Add pyqtgraph dependency for robot-log-visualizer

[traversaro]

No description provided.

[traversaro]

The CI failure seems unrelated:

2025-07-08T18:34:50.8721830Z /Users/runner/work/robotology-superbuild/robotology-superbuild/src/ICUB/src/libraries/icubmod/embObjLib/diagnosticInfoParsers.cpp:559:39: error: non-constant-expression cannot be narrowed from type 'eObus_t' to 'uint8_t' (aka 'unsigned char') in initializer list [-Wc++11-narrowing]
2025-07-08T18:34:50.9726850Z   559 |             eOlocation_t location = { static_cast<eObus_t>(bus), 0, address};
2025-07-08T18:34:51.0729820Z       |                                       ^~~~~~~~~~~~~~~~~~~~~~~~~
2025-07-08T18:34:51.1734290Z /Users/runner/work/robotology-superbuild/robotology-superbuild/src/ICUB/src/libraries/icubmod/embObjLib/diagnosticInfoParsers.cpp:559:39: note: insert an explicit cast to silence this issue
2025-07-08T18:34:51.2473210Z   559 |             eOlocation_t location = { static_cast<eObus_t>(bus), 0, address};
2025-07-08T18:34:51.3374950Z       |                                       ^~~~~~~~~~~~~~~~~~~~~~~~~
2025-07-08T18:34:51.3915830Z       |                                       static_cast<uint8_t>(    )

[traversaro]

The CI failure seems unrelated:

2025-07-08T18:34:50.8721830Z /Users/runner/work/robotology-superbuild/robotology-superbuild/src/ICUB/src/libraries/icubmod/embObjLib/diagnosticInfoParsers.cpp:559:39: error: non-constant-expression cannot be narrowed from type 'eObus_t' to 'uint8_t' (aka 'unsigned char') in initializer list [-Wc++11-narrowing]
2025-07-08T18:34:50.9726850Z   559 |             eOlocation_t location = { static_cast<eObus_t>(bus), 0, address};
2025-07-08T18:34:51.0729820Z       |                                       ^~~~~~~~~~~~~~~~~~~~~~~~~
2025-07-08T18:34:51.1734290Z /Users/runner/work/robotology-superbuild/robotology-superbuild/src/ICUB/src/libraries/icubmod/embObjLib/diagnosticInfoParsers.cpp:559:39: note: insert an explicit cast to silence this issue
2025-07-08T18:34:51.2473210Z   559 |             eOlocation_t location = { static_cast<eObus_t>(bus), 0, address};
2025-07-08T18:34:51.3374950Z       |                                       ^~~~~~~~~~~~~~~~~~~~~~~~~
2025-07-08T18:34:51.3915830Z       |                                       static_cast<uint8_t>(    )

This will be fixed by robotology/icub-main#1032 .