Update dependency com.diffplug.spotless:spotless-maven-plugin to v2.30.0 (mulk/mulkcms2!6)

This MR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [com.diffplug.spotless:spotless-maven-plugin](https://github.com/diffplug/spotless) | build | minor | `2.29.0` -> `2.30.0` |

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### Release Notes

<details>
<summary>diffplug/spotless</summary>

### [`v2.30.0`](https://github.com/diffplug/spotless/blob/HEAD/CHANGES.md#&#8203;2300---2022-09-14)

##### Added

-   `formatAnnotations()` step to correct formatting of Java type annotations.  It puts type annotations on the same line as the type that they qualify.  Run it after a Java formatting step, such as `googleJavaFormat()`. ([#&#8203;1275](https://github.com/diffplug/spotless/pull/1275))

##### Changes

-   Bump default `ktfmt` version to latest `0.39` -> `0.40` ([#&#8203;1312](https://github.com/diffplug/spotless/pull/1312))
-   Bump default `ktlint` version to latest `0.46.1` -> `0.47.1` ([#&#8203;1303](https://github.com/diffplug/spotless/pull/1303))
    -   Also restored support for older versions of ktlint back to `0.31.0`

</details>

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