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

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https://hg.mozilla.org/integration/gaia-central/rev/830d094e3135
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #26258 from jmcanterafonseca/fix_fb_remove_photo

Bug 1098218 - [Contacts] [Regression] Facebook contact photo should not ...

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https://hg.mozilla.org/integration/gaia-central/rev/5998d9e9655c
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Bug 1098218 - [Contacts] [Regression] Facebook contact photo should not be removed and could be changed by a local photo
Bumping manifests a=b2g-bump