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

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https://hg.mozilla.org/integration/gaia-central/rev/22be86b1e87e
Author: Douglas Sherk <github@sherk.me>
Desc: Merge pull request #18961 from DouglasSherk/1006133-sms-deletion-tests

Bug 1006133 - [Messages] Add tests for UI message deletion. r=azasypkin

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https://hg.mozilla.org/integration/gaia-central/rev/a69ee3434699
Author: DouglasSherk <github@sherk.me>
Desc: Bug 1006133 - [Messages] Add tests for UI message deletion. r=azasypkin
Bumping manifests a=b2g-bump