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

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https://hg.mozilla.org/integration/gaia-central/rev/532090e2f227
Author: steveck-chung <schung@mozilla.com>
Desc: Merge pull request #23565 from jpruden92/bug981052-sms

Bug 981052 - [Messages] We should ask for confirmation when the user tries to delete an outgoing message. r=steveck-chung(schung)

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https://hg.mozilla.org/integration/gaia-central/rev/324b6ad3a2d6
Author: jprudencio <jpruden92@gmail.com>
Desc: Bug 981052 - [Messages] We should ask for confirmation when the user tries to delete an outgoing message
Bumping manifests a=b2g-bump