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

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https://hg.mozilla.org/integration/gaia-1_4/rev/a174fd44cd29
Author: Luke Chang <lchang@mozilla.com>
Desc: Merge pull request #23126 from luke-chang/1029934_v1.4_rupee_symbol

Bug 1029934 - User cannot input Rupee symbol

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https://hg.mozilla.org/integration/gaia-1_4/rev/c182dfae67b8
Author: Luke Chang <lchang@mozilla.com>
Desc: Bug 1029934 - User cannot input Rupee symbol

Cherry-picked from 8d4f2edecad1e71c70f34702d761566b0723fff1
Bumping manifests a=b2g-bump