Bumping gaia.json for 2 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/0bc7043cf39b
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #14412 from jmcanterafonseca/fix_sim_export

Bug 944575 - When exporting a local contact to SIM save the iccContactId...

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https://hg.mozilla.org/integration/gaia-1_2/rev/ba5bb4b27ea0
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Bug 944575 - When exporting a local contact to SIM save the iccContactId in order to align with bug 943234