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

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https://hg.mozilla.org/integration/gaia-central/rev/a7c41b931314
Author: Carsten Book <tomcat@mozilla.com>
Desc: Merge pull request #22040 from guilherme-pg/bug1041613-timeout-requests

Bug 1041613 - Timeout server requests in Find My Device. r=gerard-majax

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https://hg.mozilla.org/integration/gaia-central/rev/3978d50282c3
Author: Guilherme Goncalves <guilherme.p.gonc@gmail.com>
Desc: Bug 1041613 - Timeout server requests in Find My Device.
Bumping manifests a=b2g-bump