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

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https://hg.mozilla.org/integration/gaia-central/rev/4b5d0bd752f2
Author: Sam Foster <sam@sam-i-am.com>
Desc: Merge pull request #26859 from sfoster/ftu-selection-patterns-bug-1092965

Bug 1092965 - Disable text selection for non-editables. r=fcampo

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https://hg.mozilla.org/integration/gaia-central/rev/3ea4d6cfb49a
Author: Sam Foster <sfoster@mozilla.com>
Desc: Bug 1092965 - Disable text selection for non-editables. r=fcampo
Bumping manifests a=b2g-bump