Bumping gaia.json for 1 gaia-1_3 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/b013fab4b910
Author: Borja Salguero <borjasalguero@users.noreply.github.com>
Desc: Merge pull request #14653 from fcampo/mms-forward-subject-941030

Bug 941030 - [Messages] Follow up Bug 919966 - Ensure that forwarding a MMS with a subject fills in the subject in the composer(cherry picked from commit 4df4a5b17839fc6ce748029fc1e79bb2bde3cc87)

Conflicts:
	apps/sms/js/compose.js
	apps/sms/js/message_manager.js
	apps/sms/js/thread_ui.js
	apps/sms/test/unit/compose_test.js
	apps/sms/test/unit/mock_compose.js