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

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https://hg.mozilla.org/integration/gaia-central/rev/e16fdbcc720c
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Merge pull request #26413 from pivanov/bug-1091719

Bug 1091719 - When setting a new alarm the header text is not centered

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https://hg.mozilla.org/integration/gaia-central/rev/c5f9229e379d
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 1091719 - When setting a new alarm the header text is not centered
Bumping manifests a=b2g-bump