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

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https://hg.mozilla.org/integration/gaia-central/rev/ae606dcb11bd
Author: Germán Toro del Valle <gtorodelvalle@gmail.com>
Desc: Merge pull request #26055 from gtorodelvalle/callscreen-bug-1094878-on-hold-memory

Bug 1094878 - Call is not on hold anymore after hanging up another call even though the icon says it is

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https://hg.mozilla.org/integration/gaia-central/rev/86cc63d5aa09
Author: German Toro del Valle <gtorodelvalle@gmail.com>
Desc: Bug 1094878 - Call is not on hold anymore after hanging up another call even though the icon says it is
Bumping manifests a=b2g-bump