Bumping gaia.json for 5 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-2_0/rev/c1f2c805b566
Author: Francisco Jordano <fjordano@mozilla.com>
Desc: Bug 1015388 - [Contacts] Implement new startup loading events

Conflicts:
	apps/communications/contacts/test/unit/contacts_test.js

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https://hg.mozilla.org/integration/gaia-2_0/rev/cd78cbc77180
Author: Amir Nissim <amirnissim@gmail.com>
Desc: Merge pull request #21699 from EverythingMe/1028674-collection-icon-dedupe

Bug 1028674 - [Collection app] Generated icon shows duplicate apps

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https://hg.mozilla.org/integration/gaia-2_0/rev/c283f53b624b
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Merge pull request #20948 from millermedeiros/837671-startup-events

Bug 837671 - [calendar] Implement new startup loading events r=gaye
Conflicts:
	apps/calendar/index.html
	tests/performance/startup_events_test.js

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https://hg.mozilla.org/integration/gaia-2_0/rev/5211cad121b4
Author: Arnau <arnau@arnaumarch.com>
Desc: Merge pull request #21487 from rnowm/1035670

Bug 1035670 - [BB] Create new shared component to manage icon fonts r=pivanov

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https://hg.mozilla.org/integration/gaia-2_0/rev/7f194c7e4a08
Author: Jon Hylands <jhylands@mozilla.com>
Desc: Bug 1023877 - Fixed reference workloads to work on flame. r=dhunt
Bumping manifests a=b2g-bump