[gtksourceview] testsuite: disable test-snippets for installed tests

[Christian Hergert <chergert src gnome org>]

commit 56e367d19d227e8e5f62159e4ae686c1ef390b29
Author: Christian Hergert <chergert redhat com>
Date:   Thu Sep 15 13:40:01 2022 -0700

    testsuite: disable test-snippets for installed tests
    
    This requires on state within the testsuite directory, and therefore cannot
    be used for system installed tests.
    
    Fixes #291

 testsuite/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/testsuite/meson.build b/testsuite/meson.build
index 177b5034..8195b14d 100644
--- a/testsuite/meson.build
+++ b/testsuite/meson.build
@@ -36,7 +36,7 @@ testsuite_sources = [
   ['test-regex'],
   ['test-region'],
   ['test-search-context'],
-  ['test-snippets'],
+  ['test-snippets', false],
   ['test-space-drawer'],
   ['test-stylescheme'],
   ['test-styleschememanager'],