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

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https://hg.mozilla.org/integration/gaia-1_4/rev/05721814f855
Author: Kyle Machulis <kyle@nonpolynomial.com>
Desc: Merge pull request #18307 from qdot/v1.4-960861

Bug 960861 - mozMobileConnections should not be requisites for airplane ...

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https://hg.mozilla.org/integration/gaia-1_4/rev/2fabb8ee45fb
Author: EragonJ <eragonj@eragonj.me>
Desc: Bug 960861 - mozMobileConnections should not be requisites for airplane ...
Bumping manifests a=b2g-bump