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

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https://hg.mozilla.org/integration/gaia-2_1/rev/3e36bfa7536e
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Merge pull request #24854 from millermedeiros/1071919-settings-drawer

Bug 1071919 - [Calendar] Settings drawer can become stuck open requiring app to be force closed r=gaye

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https://hg.mozilla.org/integration/gaia-2_1/rev/21eed569c052
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Bug 1071919 - [Calendar] Settings drawer can become stuck open requiring app to be force closed
Bumping manifests a=b2g-bump