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

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https://hg.mozilla.org/integration/gaia-2_1/rev/eea9cef897c9
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #23183 from crdlc/bug-1016228

Bug 1016228 - [Collections App] Rename Collections(cherry picked from commit 91edecd83e33b4704e5774e15e5b8b45c0f28d48)
Bumping manifests a=b2g-bump