Upgrade versionCode to a potentially unused one

sauloperez · sauloperez · commit b59b52f44cd5 · 2022-10-03T20:57:31.000+02:00
Sergi played with version codes in the past and we don't know which one
may be available.
diff --git a/app.json b/app.json
@@ -30,7 +30,7 @@
     },
     "android": {
       "package": "org.timeoverflow.mobileapp",
-      "versionCode": 10
+      "versionCode": 20
     },
     "extra": {
       "eas": {
