Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/43b4710f7e44
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #26790 from cctuan/1110040

Bug 1110040 - [Text Selection] bubble broken when selection area is too narrow

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https://hg.mozilla.org/integration/gaia-central/rev/5a8c6831a4a5
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 1110040 - [Text Selection] bubble broken when selection area is too narrow

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https://hg.mozilla.org/integration/gaia-central/rev/4b47cf2e0458
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #26731 from cctuan/1106651

Bug 1106651 - [Keyboard] When using edge gesture while a keyboard is shown, black appears in place of keyboard space and app freezes

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https://hg.mozilla.org/integration/gaia-central/rev/9dfb02d93e1c
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 1106651 - [Keyboard] When using edge gesture while a keyboard is shown, black appears in place of keyboard space and app freezes
Bumping manifests a=b2g-bump