Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/42232444b435
Author: Hubert Figuière <hub@figuiere.net>
Desc: Merge pull request #26298 from hfiguiere/rtl-fixes

Lists RTL fixes for music. Bug 1074546 and bug 1101537. r=squib

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https://hg.mozilla.org/integration/gaia-central/rev/32b41a33f27e
Author: Hubert Figuière <hub@figuiere.net>
Desc: Bug 1101537 - Align list header and item content properly in RTL

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https://hg.mozilla.org/integration/gaia-central/rev/e8256bb26983
Author: Hubert Figuière <hub@figuiere.net>
Desc: Bug 1074546 - The album cover should be on the right in RTL.
Bumping manifests a=b2g-bump