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

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https://hg.mozilla.org/integration/gaia-central/rev/102ac5a7b4fb
Author: Min-Zhong "John" Lu <mnjul@users.noreply.github.com>
Desc: Merge pull request #20428 from mnjul/bug_1024395_lockscreen_color_overlay_by_bug_973443

Bug 1024395 - Lockscreen color overlay not working due to bug 973443. r=arthur.chen

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https://hg.mozilla.org/integration/gaia-central/rev/7e9f03b1c0dd
Author: John Lu [:mnjul] <jlu@mozilla.com>
Desc: Bug 1024395 - Lockscreen color overlay not working due to bug 973443

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https://hg.mozilla.org/integration/gaia-central/rev/72104c65d13d
Author: Zac <zcampbell@mozilla.com>
Desc: Merge pull request #19990 from EragonJ/bug-996417

Bug 996417 - [Settings] Make sure we would render current level of

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https://hg.mozilla.org/integration/gaia-central/rev/c515c4b5b6f8
Author: EragonJ <eragonj@eragonj.me>
Desc: Bug 996417 - [Settings] Make sure we would render current level of battery on root panel

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https://hg.mozilla.org/integration/gaia-central/rev/a8096fec434d
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #20734 from crdlc/bug-1026058

Bug 1026058 - [Vertical Homescreen] Edit Mode - Delete icon is jagged and not sharp

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https://hg.mozilla.org/integration/gaia-central/rev/4b705102b0f9
Author: crdlc <crdlc@tid.es>
Desc: Bug 1026058 - [Vertical Homescreen] Edit Mode - Delete icon is jagged and not sharp
Bumping manifests a=b2g-bump