[gdk-pixbuf] tests: Add test image from bug 524216

[Bastien Nocera <hadess src gnome org>]

commit 1f73d3a66603af575aca571c0884afae2fe19c8f
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Oct 22 14:31:52 2014 +0200

    tests: Add test image from bug 524216
    
    So we can check that an error is thrown.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=524216

 tests/test-images/invalid_png_test_3 |  Bin 0 -> 64 bytes
 1 files changed, 0 insertions(+), 0 deletions(-)
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diff --git a/tests/test-images/invalid_png_test_3 b/tests/test-images/invalid_png_test_3
new file mode 100644
index 0000000..a335aa9
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