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

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https://hg.mozilla.org/integration/gaia-central/rev/9ccb3731cd93
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #25227 from jmcanterafonseca/fix_test

Bug 1083878 - [Contacts] Fix test_sort_contacts as it currently cannot w...

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https://hg.mozilla.org/integration/gaia-central/rev/ae1409b089f7
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Bug 1083878 - [Contacts] Fix test_sort_contacts as it currently cannot work
Bumping manifests a=b2g-bump