Bumping gaia.json for 2 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/4ee61754abfe
Author: Trif Andrei-Alin <trifandreialin@gmail.com>
Desc: Merge pull request #14269 from bebef1987/gmail_v1.2

Bug 943441 - test_import_contacts_from_gmail is failing on master for th...

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https://hg.mozilla.org/integration/gaia-1_2/rev/e889829cd884
Author: Bebe <bebe@mozilla.ro>
Desc: Bug 943441 - test_import_contacts_from_gmail is failing on master for the wrong reason