Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/3dc4013f5d2f
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Merge pull request #23575 from jpruden92/bug1026789-contacts

Bug 1026789 - [B2G][Contacts]Selecting OK button after receiving airplane mode activated warning message faintly shows two oval buttons in footer

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https://hg.mozilla.org/integration/gaia-central/rev/028658c1d176
Author: jprudencio <jpruden92@gmail.com>
Desc: Bug 1026789 - [B2G][Contacts]Selecting OK button after receiving airplane mode activated warning message faintly shows two oval buttons in footer

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https://hg.mozilla.org/integration/gaia-central/rev/b3633aace1e4
Author: Zbigniew Braniecki <gandalf@mozilla.com>
Desc: Bug 1062602 - Follow up to gaia-subheader semantic change, fix the test in ringtones
Bumping manifests a=b2g-bump