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

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https://hg.mozilla.org/integration/gaia-central/rev/192b47d85aa2
Author: Salvador de la Puente González <salva@unoyunodiez.com>
Desc: Merge pull request #21998 from lodr/bug-1034735-installing-when-low-battery

Bug 1034735 -  [System][OTA] When the device is plugged-in, it should no...
r=etienne

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https://hg.mozilla.org/integration/gaia-central/rev/66917bd8590b
Author: Salvador de la Puente <salva@unoyunodiez.com>
Desc: Bug 1034735 -  [System][OTA] When the device is plugged-in, it should not block OTA even the energy is lower than 50%
Bumping manifests a=b2g-bump