Bumping gaia.json for 5 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/9a9020867817
Author: Zac <zcampbell@mozilla.com>
Desc: Merge pull request #13044 from bobsilverberg/fix_ftu

Bug 930018 - Fix test_ftu_with_tour.py on aurora

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https://hg.mozilla.org/integration/gaia-1_2/rev/226ca96e9e47
Author: Bob Silverberg <bob.silverberg@gmail.com>
Desc: Bug 930018 - Fix test_ftu_with_tour.py on aurora

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https://hg.mozilla.org/integration/gaia-1_2/rev/f4e4eaa2d765
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 924946 - Change test_ftu_with_tour so it can work on desktopb2g

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https://hg.mozilla.org/integration/gaia-1_2/rev/adea3d9e45c9
Author: Zac <zcampbell@mozilla.com>
Desc: Merge pull request #13089 from AndreiH/bug928407

Bug 928407 - Improve test_import_contacts_from_SIM.py on aurora

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https://hg.mozilla.org/integration/gaia-1_2/rev/5e2b779ddeda
Author: Andrei Hutusoru <andreihutusoru@P5069.(none)>
Desc: Bug 928407 - Improve test_import_contacts_from_SIM.py on aurora