Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/d7dc5e41e600
Author: AndreiH <andrei.hutusoru@softvision.ro>
Desc: Merge pull request #19551 from chirarobert/wait_email_frame

Bug 1014611 - [v2.0] Fix intermittent test_receive_active_sync_email.py

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https://hg.mozilla.org/integration/gaia-central/rev/665fa6e301af
Author: chirarobert <robert.chira@softvision.ro>
Desc: Bug 1014611 - [v2.0] Fix intermittent test_receive_active_sync_email.py

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https://hg.mozilla.org/integration/gaia-central/rev/d7bb912a5296
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #19577 from gasolin/issue-1015013

Issue 1015013  JSDoc 3 getter/setter parse error in strict mode, r=yurenju

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https://hg.mozilla.org/integration/gaia-central/rev/105446d3dc66
Author: gasolin <gasolin@gmail.com>
Desc: Bug 1015013 - JSDoc 3 parse error getter/setter with the same name in strict mode
Bumping manifests a=b2g-bump