Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_4/rev/0a23aeed5e21
Author: DouglasSherk <github@sherk.me>
Desc: Bug 1005823 - [Dialer] Fix emergency calls with no SIM card. r=rik
Bumping manifests a=b2g-bump