patch 9.1.1370: CI Tests favor GTK2 over GTK3

Problem:  CI Tests favor GTK2 over GTK3
Solution: Install GTK3 dependencies and debug packages for CI workflows,
          update ASAN suppression list, update required dependency
          checks for the tests (Drew Vogel)

closes: #17253

Signed-off-by: Drew Vogel <dvogel@github>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_autocmd.vim b/src/testdir/test_autocmd.vim
index 8d083db..192c436 100644
--- a/src/testdir/test_autocmd.vim
+++ b/src/testdir/test_autocmd.vim
@@ -580,6 +580,7 @@
 endfunc
 
 func Test_WinScrolled_once_only()
+  CheckScreendump
   CheckRunVimInTerminal
 
   let lines =<< trim END
@@ -609,6 +610,7 @@
 " Check that WinScrolled is not triggered immediately when defined and there
 " are split windows.
 func Test_WinScrolled_not_when_defined()
+  CheckScreendump
   CheckRunVimInTerminal
 
   let lines =<< trim END
@@ -3024,6 +3026,7 @@
 func Test_autocmd_nested_switch_window()
   " run this in a separate Vim so that SafeState works
   CheckRunVimInTerminal
+  CheckScreendump
 
   let lines =<< trim END
       vim9script