Bumping gaia.json for 6 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-2_1/rev/f35f38c4c7f6
Author: Fernando Rodriguez Sela <frsela@tid.es>
Desc: Bug 1059434 - STK display text command doesn't support time duration

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https://hg.mozilla.org/integration/gaia-2_1/rev/e0924028fcb4
Author: Fernando Rodriguez Sela <frsela@tid.es>
Desc: Bug 1059434 - STK display text command doesn't support time duration

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https://hg.mozilla.org/integration/gaia-2_1/rev/5e45feec8975
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #23876 from cctuan/1061563-v21

Bug 1061563 - extent test timeout from 180000 for build-test

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https://hg.mozilla.org/integration/gaia-2_1/rev/76c0a0063441
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 1061563 - extent test timeout from 180000 for build-test

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https://hg.mozilla.org/integration/gaia-2_1/rev/d0fe908aa1f5
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #23891 from cctuan/997606-v2.1

Bug 997606 - [NFC] Arrow truncate on shrinking UI

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https://hg.mozilla.org/integration/gaia-2_1/rev/8175c677727a
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 997606 - [NFC] Arrow truncate on shrinking UI
Bumping manifests a=b2g-bump