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

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https://hg.mozilla.org/integration/gaia-central/rev/023d3928df2f
Author: Greg Weng <snowmantw@gmail.com>
Desc: Merge pull request #25067 from snowmantw/bug1069879-2.2

Bug 1069879 - Only three dots shown when entering passcode

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https://hg.mozilla.org/integration/gaia-central/rev/2fbd7ddec55f
Author: Greg Weng <snowmantw@gmail.com>
Desc: Bug 1069879 - Only three dots shown when entering passcode
Bumping manifests a=b2g-bump