Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/5dbf4d8b3eb5
Author: AndreiH <andrei.hutusoru@softvision.ro>
Desc: Merge pull request #22779 from viorelaioia/bug_1052341

Bug 1052341 - Fix intermittent failure in test_import_contacts_from_gmai...

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https://hg.mozilla.org/integration/gaia-central/rev/1e841165033e
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 1052341 - Fix intermittent failure in test_import_contacts_from_gmail.py

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https://hg.mozilla.org/integration/gaia-central/rev/fe0762edaac5
Author: Ed Morley <emorley@mozilla.com>
Desc: Revert "Bug 1043892 - [LockScreen] Solve the visual regression caused by Bug 1043821, with panel switching refactoring" for B2G emulator xpcshell failures

This reverts commit 5f7d9e2813bc4719919f5b6b52219295c56ebb13.
Bumping manifests a=b2g-bump