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

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https://hg.mozilla.org/integration/gaia-central/rev/03dfc866c15f
Author: EragonJ <eragonj@eragonj.me>
Desc: Merge pull request #15962 from EragonJ/bug-962380

Bug 962380 - [DSDS] When SIM 2 is primary outgoing call, ...

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https://hg.mozilla.org/integration/gaia-central/rev/a410285d7b3a
Author: EragonJ <eragonj@eragonj.me>
Desc: Bug 962380 - [DSDS] When SIM 2 is primary outgoing call, ...

dialing out emergency call under airplane mode will not successfully turn off airplane mode.
Bumping manifests a=b2g-bump