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

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https://hg.mozilla.org/integration/gaia-1_3/rev/4ce1b1f4b852
Author: Bob Silverberg <bob.silverberg@gmail.com>
Desc: Merge pull request #18052 from bobsilverberg/fix-tbpl-manifest

Bug 991657 - [v1.3] Backport test_cards_view_with_two_apps.py test to v1.3

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https://hg.mozilla.org/integration/gaia-1_3/rev/42aed4024f06
Author: Bob Silverberg <bob.silverberg@gmail.com>
Desc: Bug 991657 - [v1.3] Backport test_cards_view_with_two_apps.py test to v1.3

Fix tbpl-manifest.ini
Bumping manifests a=b2g-bump