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

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https://hg.mozilla.org/integration/gaia-central/rev/e7fa9ad7f9ff
Author: Dave Hylands <dhylands@gmail.com>
Desc: Merge pull request #22433 from JonHylands/jhylands-1028261-reference-workload-exit-error-code-v2

Bug 1038261 - Fix to handle both sdcard and sdcard0

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https://hg.mozilla.org/integration/gaia-central/rev/c5e637996b86
Author: Jon Hylands <jhylands@mozilla.com>
Desc: Bug 1038261 - Fix to handle both sdcard and sdcard0
Bumping manifests a=b2g-bump