Update version to 2.48.7 #252

Job	Run time
Lints	8m 34s
Code Formatting	54s
RingRTC as dependency (using Prebuilt WebRTC) (ubuntu-22.04)	1m 41s
Electron Tests (ubuntu-22.04)	2m 37s
RingRTC as dependency (using Prebuilt WebRTC) (macos-13)	4m 56s
Cross compile Linux aarch64 (using prebuilt WebRTC)	2m 18s
RingRTC as dependency (using Prebuilt WebRTC) (windows-latest)	3m 43s
Electron Tests (windows-latest)	4m 56s
Tests	1m 27s
Android Build	6m 2s
Electron Tests (macos-13)	4m 27s
iOS Tests	12m 7s
	53m 42s

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