Bump FedericoCarboni/setup-ffmpeg from 2 to 3

Bumps [FedericoCarboni/setup-ffmpeg](https://github.com/federicocarboni/setup-ffmpeg) from 2 to 3.
- [Release notes](https://github.com/federicocarboni/setup-ffmpeg/releases)
- [Commits](federicocarboni/setup-ffmpeg@v2...v3)

---
updated-dependencies:
- dependency-name: FedericoCarboni/setup-ffmpeg
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/emulator.yaml

@@ -78,7 +78,7 @@ jobs:
 
       - name: install ffmpeg
         if: inputs.video
-        uses: FedericoCarboni/setup-ffmpeg@v2
+        uses: FedericoCarboni/setup-ffmpeg@v3
 
       - name: pregenerate test package
         if: inputs.video