Increased test timeout to 60 minutes / keep 10 builds

Change-Id: I06adcc3d165756284bd815cfa76aeafd4dbd87a5
Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.resources/+/192187
Tested-by: Platform Bot <platform-bot@eclipse.org>
Reviewed-by: Andrey Loskutov <loskutov@gmx.de>
1 file changed