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.)
4 years ago · 3494446fad
1 changed files with 1 additions and 1 deletions
--- a/externals/SDL
+++ b/externals/SDL
@ -1 +1 @@
-Subproject commit 59fb7acbf7af9d64a2d5432bb6677585a0ddd50a
+Subproject commit b424665e0899769b200231ba943353a5fee1b6b6