d/tests/python3-gi: Explicitly disable a11y

This version of GTK logs a warning (which makes the autopkgtest fail)
if we cannot contact the a11y bus provided by AT-SPI.

diff --git a/debian/tests/python3-gi b/debian/tests/python3-gi
index 4371c465877391e784656ad09bd3c5d61a87efc7..f3888b48ca4394647581f5880f47be496d975b67 100755 (executable)
--- a/debian/tests/python3-gi
+++ b/debian/tests/python3-gi
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+export GTK_A11Y=none
+
 debian/tests/run-with-display "$GDK_BACKEND" \
 dbus-run-session \
 python3 <<EOF