Bump FBInk to v1.20.3
Bump FBInk to v1.20.3

Should fix the Cervantes CI ;).

Frenzie/koreader-base,koreader/koreader-base,Frenzie/koreader-base,koreader/koreader-base,NiLuJe/koreader-base,Frenzie/koreader-base,NiLuJe/koreader-base,Frenzie/koreader-base,koreader/koreader-base,NiLuJe/koreader-base,koreader/koreader-base,NiLuJe/koreader-base