sdl2-compat: ci: build sdl2-compat every day using schedule event

SDL Commits
1 
From d0f2915cf3e11539fac4ff2a0841d872b45c1459 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Wed, 9 Aug 2023 01:13:03 +0200
Subject: [PATCH] ci: build sdl2-compat every day using schedule event

---
 .github/workflows/main.yml | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index fe0a730..7221fbe 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,6 +1,10 @@
 name: Build
 
-on: [push, pull_request]
+on:
+  pull_request:
+  push:
+  schedule:
+    - cron: '5 1 * * *' # Build every day at 1:05am
 
 jobs:
   Build: