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

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https://hg.mozilla.org/integration/gaia-2_1/rev/0d6c45a26f90
Author: Guillaume C. Marty <gmarty@users.noreply.github.com>
Desc: Merge pull request #25266 from gmarty/Bug-1083717-Notifications-text-in-utility-tray-slightly-truncated-in-some-locales

Bug 1083717 - Notifications text in utility tray slightly truncated in some locales

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https://hg.mozilla.org/integration/gaia-2_1/rev/cc15388a1ee1
Author: Guillaume Marty <edo999@gmail.com>
Desc: Bug 1083717 - Notifications text in utility tray slightly truncated in some locales
Bumping manifests a=b2g-bump