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

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https://hg.mozilla.org/integration/gaia-central/rev/f09282209a04
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #23052 from eliperelman/bug-1054716

Bug 1054716 - Prevent system notification banners from overlaying the software home button

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https://hg.mozilla.org/integration/gaia-central/rev/7426c9986478
Author: Eli Perelman <eli@eliperelman.com>
Desc: Bug 1054716 - Prevent system notification banners from overlaying the software home button
Bumping manifests a=b2g-bump