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

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https://hg.mozilla.org/integration/gaia-central/rev/a5e97e8a772b
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #12698 from crdlc/bug-923709

Bug 923709 - [B2G][Everything.me] When removing a collection it shows th...

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https://hg.mozilla.org/integration/gaia-central/rev/9b9e9f4c7591
Author: crdlc <crdlc@tid.es>
Desc: Bug 923709 - [B2G][Everything.me] When removing a collection it shows the original collection name even though it has been renamed