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

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https://hg.mozilla.org/integration/gaia-central/rev/304e319b8a7d
Author: Douglas Sherk <github@sherk.me>
Desc: Merge pull request #26565 from DouglasSherk/1102496-dialer-keypad-delete-rtl

Bug 1102496 - Force render the keypad delete button in LTR, even in RTL mode. r=gsvelto

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https://hg.mozilla.org/integration/gaia-central/rev/3be4530c5276
Author: Doug Sherk <github@sherk.me>
Desc: Bug 1102496 - Force render the keypad delete button in LTR, even in RTL mode. r=gsvelto
Bumping manifests a=b2g-bump