Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/f4d102c15737
Author: viorelaioia <viorela.ioia@softvision.ro>
Desc: Merge pull request #25996 from viorelaioia/bug_1092195_1

Bug 1092195 - Investigate failure in test_cost_control_ftu.py

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https://hg.mozilla.org/integration/gaia-central/rev/87bdd03698bf
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 1092195 - Investigate failure in test_cost_control_ftu.py

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https://hg.mozilla.org/integration/gaia-central/rev/d4ab2dd40bfc
Author: Marina <marina.rodrigueziglesias@telefonica.com>
Desc: Merge pull request #25754 from gitmai/bug-1092143-cc-widget-visual-defects

Bug 1092143 - [Costcontrol] Widget in utility tray has some visual defec...
r=salva

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https://hg.mozilla.org/integration/gaia-central/rev/9f4dd6967a12
Author: mai <mri@tid.es>
Desc: Bug 1092143 - [Costcontrol] Widget in utility tray has some visual defects when the balance is lower than balance alert limit
Bumping manifests a=b2g-bump