Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/58674c6684b4
Author: Zac Campbell <zcampbell@mozilla.com>
Desc: bug 977052 - Address intermittent in test_sms_to_message.py
Bumping manifests a=b2g-bump