Bumping gaia.json for 2 gaia-1_3 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/bb9e12df3c7b
Author: Florin Strugariu <bebef_1987@yahoo.com>
Desc: Merge pull request #16122 from chirarobert/v1.3_xfail_ftu_test

Bug 970235 - [v1.3] Xfail test_ftu_skip_tour() with Bug 965912

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https://hg.mozilla.org/integration/gaia-1_3/rev/8be8d41bbc3c
Author: chirarobert <chirarobert@yahoo.com>
Desc: Bug 970235 - [v1.3] Xfail test_ftu_skip_tour() with Bug 965912