Update kotlinpoet to v1.18.0 (#1507)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [com.squareup:kotlinpoet-ksp](https://togithub.com/square/kotlinpoet)
| dependencies | minor | `1.17.0` -> `1.18.0` |
| [com.squareup:kotlinpoet](https://togithub.com/square/kotlinpoet) |
dependencies | minor | `1.17.0` -> `1.18.0` |

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### Release Notes

<details>
<summary>square/kotlinpoet (com.squareup:kotlinpoet-ksp)</summary>

###
[`v1.18.0`](https://togithub.com/square/kotlinpoet/releases/tag/1.18.0)

[Compare
Source](https://togithub.com/square/kotlinpoet/compare/1.17.0...1.18.0)

Thanks to [@&#8203;DanielGronau](https://togithub.com/DanielGronau) for
contributing to this release.

-   New: Kotlin 2.0.0.
-   New: KSP 2.0.0-1.0.22.
-   New: Promote `kotlinpoet-metadata` out of preview to stable.
- New: Migrate `kotlinpoet-metadata` to stable
`org.jetbrains.kotlin:kotlin-metadata-jvm` artifact for Metadata
parsing.
- New: Make enum entry references in `KSAnnotation.toAnnotationSpec()`
and `KSClassDeclaration.toClassName()` more robust.
- Fix: Don't expand typealiases of function types to `LambdaTypeName`s
in `KSTypeReference.toTypeName()`.
- Fix: Avoid rounding small double and float values in `%L` translation
([#&#8203;1927](https://togithub.com/square/kotlinpoet/issues/1927)).
- Fix: Fix typealias type argument resolution in KSP2
([#&#8203;1929](https://togithub.com/square/kotlinpoet/issues/1929)).

</details>

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gradle/libs.versions.toml

@@ -29,7 +29,7 @@ jvmTarget = "11"
 publishedJvmTarget = "1.8"
 kct = "0.5.1"
 kotlin = "2.0.0"
-kotlinpoet = "1.17.0"
+kotlinpoet = "1.18.0"
 kotlinx-coroutines = "1.8.1"
 kotlinx-serialization = "1.7.1"
 ksp = "2.0.0-1.0.22"