Don't exclude icons from archive

ninja: error: '/var/tmp/portage/dev-util/seer-2.7/work/seer-2.7/src/resources/icons/hicolor/32x32/seergdb.png', needed by 'qrc_resource.cpp', missing and no known rule to make it

See-Also: 12c6cd7c4a
Signed-off-by: Alfred Wingate <parona@protonmail.com>

.gitattributes

@@ -3,7 +3,6 @@
 .gitignore      export-ignore
 
 debian/         export-ignore
-icons/          export-ignore
 images/         export-ignore
 notes/          export-ignore
 scripts/        export-ignore