Bump streamlit-webrtc from 0.46.0 to 0.47.0

Bumps [streamlit-webrtc](https://github.com/whitphx/streamlit-webrtc) from 0.46.0 to 0.47.0.
- [Release notes](https://github.com/whitphx/streamlit-webrtc/releases)
- [Changelog](https://github.com/whitphx/streamlit-webrtc/blob/main/CHANGELOG.md)
- [Commits](https://github.com/whitphx/streamlit-webrtc/compare/v0.46.0...v0.47.0)

---
updated-dependencies:
- dependency-name: streamlit-webrtc
dependency-type: direct:production
update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,5 +1,5 @@
 opencv-python-headless==4.8.0.76
 pydub==0.25.1
-streamlit_webrtc==0.46.0
+streamlit_webrtc==0.47.0
 twilio~=8.4.0
 matplotlib