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

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https://hg.mozilla.org/integration/gaia-2_1/rev/e0f213621fac
Author: Sam Foster <sam@sam-i-am.com>
Desc: Merge pull request #25100 from sfoster/not-shown-tm-bug-1081528

v2.1 Bug 1081528 - Only handle attentionscreenopened events while TM is showing. r=alive a=fabrice

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https://hg.mozilla.org/integration/gaia-2_1/rev/92a94d4a9ebd
Author: Sam Foster <sfoster@mozilla.com>
Desc: Bug 1081528 - Only handle attentionscreenopened events while task manager is showing. r=etienne
Bumping manifests a=b2g-bump