Bumping gaia.json for 1 gaia-1_3 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/ea0eb97c0707
Author: EragonJ <eragonj@eragonj.me>
Desc: Merge pull request #15959 from EragonJ/bug-967708

Bug 967708 - [B2G][l10n][Settings] German: "Change PIN" doesn't use loca...