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

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https://hg.mozilla.org/integration/gaia-central/rev/f34af4cf05ef
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Merge pull request #27045 from stasm/1113023-macro-arg-length-check

Bug 1113023 - Remove the arity check for macros. r=gandalf

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https://hg.mozilla.org/integration/gaia-central/rev/375733d84b17
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Bug 1113023 - Remove the arity check for macros. r=gandalf
Bumping manifests a=b2g-bump