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

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https://hg.mozilla.org/integration/gaia-central/rev/bc742f78bfbf
Author: Salvador de la Puente González <neo.salvador@gmail.com>
Desc: Merge pull request #26240 from lodr/bug-997547-text-to-email-from-contacts

Bug 997547 - [MMS]Text to email from Contact details

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https://hg.mozilla.org/integration/gaia-central/rev/e67293e80441
Author: na-matsumoto <na-matsumoto@kddi-tech.com>
Desc: Bug 997547 - [MMS]Text to email from Contact details
Bumping manifests a=b2g-bump