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

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https://hg.mozilla.org/integration/gaia-central/rev/f5f41d05a727
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #13094 from crh0716/928325

Bug 928325 - Add check before using multiple sim API for backward compatibility

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https://hg.mozilla.org/integration/gaia-central/rev/0a1108ccdab0
Author: Arthur Chen <crh0716@gmail.com>
Desc: Bug 928325 - Add backward compatibility on new WebIccManager APIs