Bumping gaia.json for 6 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/47df091dc969
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #26235 from chirarobert/bug_1091676

Bug 1091676 - Investigate intermittent failure in test_cost_control_rese...

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https://hg.mozilla.org/integration/gaia-central/rev/614add3cd87c
Author: Robert Chira <robertchira@P5075.(none)>
Desc: Bug 1091676 - Investigate intermittent failure in test_cost_control_reset_wifi.py

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https://hg.mozilla.org/integration/gaia-central/rev/3ee7f8d8e031
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #26226 from davehunt/bug1074117-costcontrol

Bug 1074117 - Use expected conditions and optimise element lookups in cost control app object

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https://hg.mozilla.org/integration/gaia-central/rev/3bf52b83f5cb
Author: Dave Hunt <dave.hunt@gmail.com>
Desc: Bug 1074117 - Use expected conditions where appropriate and optimise element lookups in cost control app object. r=fstrugariu

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https://hg.mozilla.org/integration/gaia-central/rev/60b5b7c5618a
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #26232 from davehunt/bug1074117-fmradio

Bug 1074117 - Use expected conditions and optimise element lookups in fm radio app object

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https://hg.mozilla.org/integration/gaia-central/rev/c429536af5da
Author: Dave Hunt <dave.hunt@gmail.com>
Desc: Bug 1074117 - Use expected conditions where appropriate and optimise element lookups in fm radio app object. r=fstrugariu
Bumping manifests a=b2g-bump