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

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https://hg.mozilla.org/integration/gaia-central/rev/d208cd929a30
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #23313 from ADLR-es/fix-bug-1048256

Bug 1048256 - [contacts] filename for exported contacts should allow eas...

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https://hg.mozilla.org/integration/gaia-central/rev/0245b20d37c9
Author: Adrián de la Rosa <hola@adlr.es>
Desc: Bug 1048256 - [contacts] filename for exported contacts should allow easy sorting my date, e.g. datestamp YYYY_MM_DD.vcf
Bumping manifests a=b2g-bump