Bumping gaia.json for 6 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/977fbb11bba2
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #24873 from viorelaioia/bug_1075504

Bug 1075504 - Update test_gallery_view to correlate with the manual test

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https://hg.mozilla.org/integration/gaia-central/rev/61a2750652a9
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 1075504 - Update test_gallery_view to correlate with the manual test

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https://hg.mozilla.org/integration/gaia-central/rev/1191fd488f91
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Merge pull request #24931 from stasm/1043643-mockl10n-followup

Bug 1043643 - Use shared mock_l10n in all Settings test

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https://hg.mozilla.org/integration/gaia-central/rev/e0e2b32d6e54
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Bug 1043643 - Use shared mock_l10n in all Settings test

This is a followup landing to https://github.com/mozilla-b2g/gaia/commit/a6c29cc2f048dc08a2f008322699368b7e5cd9b0.

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https://hg.mozilla.org/integration/gaia-central/rev/0e7c2fe5a6aa
Author: Anthony Ricaud <anthony@ricaud.me>
Desc: Merge pull request #24887 from Rik/redial-outgoing-1078921

Bug 1078921 - Only retrieve outgoing calls for Bluetooth redial r=drs

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https://hg.mozilla.org/integration/gaia-central/rev/aa943f420827
Author: Anthony Ricaud <anthony@ricaud.me>
Desc: Bug 1078921 - Only retrieve outgoing calls for Bluetooth redial
Bumping manifests a=b2g-bump