This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [aws-cloudformation/rain](https://github.com/aws-cloudformation/rain) | minor | `v1.14.0` -> `v1.15.0` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

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### Release Notes

<details>
<summary>aws-cloudformation/rain (aws-cloudformation/rain)</summary>

### [`v1.15.0`](https://github.com/aws-cloudformation/rain/releases/tag/v1.15.0)

[Compare Source](aws-cloudformation/rain@v1.14.0...v1.15.0)

#### What's Changed

-   Forecast plugins by [@&#8203;ericzbeard](https://github.com/ericzbeard) in aws-cloudformation/rain#500
-   Fixing line numbers for forecast by [@&#8203;ericzbeard](https://github.com/ericzbeard) in aws-cloudformation/rain#503
-   Add node-style to merge by [@&#8203;ericzbeard](https://github.com/ericzbeard) in aws-cloudformation/rain#504
-   Version bump by [@&#8203;ericzbeard](https://github.com/ericzbeard) in aws-cloudformation/rain#505

**Full Changelog**: aws-cloudformation/rain@v1.14.0...v1.15.0

</details>

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