externals: Revert SDL2 to release-2.0.20

prerelease-2.23.1 appears to have issues on the SteamDeck with external
controllers. Revert to 2.0.20 for now (and as opposed to using
prerelease-2.0.19 like before.)
This commit is contained in:
lat9nq
2022-07-18 21:43:29 -04:00
parent 149d28e69c
commit 3494446fad
+1 -1