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

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https://hg.mozilla.org/integration/gaia-2_1/rev/f54924c99f28
Author: Douglas Sherk <github@sherk.me>
Desc: Merge pull request #23992 from empoalp/bug_1061120_21

Bug 1061120 - [Calllog][Dialer] Time duration format is not showing 'min' or 's' in 'Call Information' r=drs

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https://hg.mozilla.org/integration/gaia-2_1/rev/53f5fe729783
Author: David Garcia <davidg@tid.es>
Desc: Bug 1061120 - [Calllog][Dialer] Time duration format is not showing 'min' or 's' in 'Call Information'
Bumping manifests a=b2g-bump