fix: Update Flatpak runtime back to 24.08

- Changed from 23.08 back to 24.08 (available version)
- SDK installation was started but timed out
- 24.08 is the correct version to use

Author: rhy

com.voice2text.app.yml

@@ -1,6 +1,6 @@
 app-id: com.voice2text.app
 runtime: org.freedesktop.Platform
-runtime-version: '23.08'
+runtime-version: '24.08'
 sdk: org.freedesktop.Sdk
 command: voice_app.py
 finish-args: