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

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https://hg.mozilla.org/integration/gaia-central/rev/2328937a56f9
Author: Fernando Rodríguez Sela <frsela@tid.es>
Desc: Merge pull request #23904 from frsela/STK/Bug1059434_Tests

Bug 1059434 - STK display text command doesn't support time duration, r=vingtetun

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https://hg.mozilla.org/integration/gaia-central/rev/64cf91123003
Author: Fernando Rodriguez Sela <frsela@tid.es>
Desc: Bug 1059434 - STK display text command doesn't support time duration
Bumping manifests a=b2g-bump