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

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https://hg.mozilla.org/integration/gaia-central/rev/db5ac80cc660
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #23998 from ADLR-es/fix-bug-1059544

Bug 1059544 - [Contacts] Negative Import Numbers after Losing Friends an...

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https://hg.mozilla.org/integration/gaia-central/rev/2f206c4ea4a1
Author: Adrián de la Rosa <hola@adlr.es>
Desc: Bug 1059544 - [Contacts] Negative Import Numbers after Losing Friends and attempting to Update Facebook Synced Contacts
Bumping manifests a=b2g-bump