🔧 chore(github): Add labels for ffmpeg and recorder (#14)

## Description

**What(what issue does this code solve/what feature does it add):**

**How(how does it solve it):**

## Required Checklist:

- [ ] I have added any necessary documentation and comments in my code
(where appropriate)
- [ ] I have added tests to make sure my code runs in all contexts

## Further comments

.github/labels.yml

@@ -74,6 +74,12 @@
 - name: "scope/relay"
   color: "B61B66"
   
+- name: "scope/ffmpeg"
+  color: "B61B66"
+  
+- name: "scope/recorder"
+  color: "B61B66"
+  
 - name: "scope/back-end"
   color: "B61B66"