Auto merge of #2837 - rust-lang:renovate/ember-cli-notifications-6.x, r=Turbo87

Update dependency ember-cli-notifications to v6.3.1

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [ember-cli-notifications](https://togithub.com/mansona/ember-cli-notifications) | devDependencies | patch | [`6.3.0` -> `6.3.1`](https://renovatebot.com/diffs/npm/ember-cli-notifications/6.3.0/6.3.1) |

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### Release Notes

<details>
<summary>mansona/ember-cli-notifications</summary>

### [`v6.3.1`](https://togithub.com/mansona/ember-cli-notifications/blob/master/CHANGELOG.md#&#8203;631--2020-09-28)

[Compare Source](https://togithub.com/mansona/ember-cli-notifications/compare/v6.3.0...v6.3.1)

==================

-   FIX: Merge pull request [#&#8203;287](https://togithub.com/mansona/ember-cli-notifications/issues/287) from jacobq/remove-getWithDefault [`#286`](https://togithub.com/mansona/ember-cli-notifications/issues/286)

</details>

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:vertical_traffic_light: **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

:recycle: **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

:no_bell: **Ignore**: Close this PR and you won't be reminded about this update again.

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 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

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Author: bors

package-lock.json

@@ -67,7 +67,7 @@
     "ember-cli-meta-tags": "6.0.0",
     "ember-cli-mirage": "1.1.8",
     "ember-cli-moment-shim": "3.8.0",
-    "ember-cli-notifications": "6.3.0",
+    "ember-cli-notifications": "6.3.1",
     "ember-cli-sri": "2.1.1",
     "ember-cli-uglify": "3.0.0",
     "ember-click-outside": "1.3.0",