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

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https://hg.mozilla.org/integration/gaia-central/rev/0955e30918c7
Author: viorelaioia <viorelaioia@gmail.com>
Desc: Merge pull request #23085 from chirarobert/update_ftu_test

Bug 1055983 - [v2.1] Update test_ftu_skip_tour to reflect changes from B...

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https://hg.mozilla.org/integration/gaia-central/rev/bd1db188c816
Author: Robert Chira <robertchira@P5075.(none)>
Desc: Bug 1055983 - [v2.1] Update test_ftu_skip_tour to reflect changes from Bug 1026098
Bumping manifests a=b2g-bump