fix(deps): update dependency com.squareup:javapoet to v1.13.0 (#173)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.squareup:javapoet](https://togithub.com/square/javapoet) |
`1.12.1` -> `1.13.0` |
[![age](https://developer.mend.io/api/mc/badges/age/maven/com.squareup:javapoet/1.13.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/com.squareup:javapoet/1.13.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/com.squareup:javapoet/1.12.1/1.13.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/com.squareup:javapoet/1.12.1/1.13.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>square/javapoet (com.squareup:javapoet)</summary>

###
[`v1.13.0`](https://togithub.com/square/javapoet/blob/HEAD/CHANGELOG.md#JavaPoet-1130--2020-06-18-)

-   New: Add support for explicit receiver parameters.
- Fix: Don't copy parameter annotations when creating a `ParameterSpec`.

</details>

---

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plugins/markdown2resource/build.gradle.kts

@@ -42,7 +42,7 @@ gradlePlugin {
 dependencies {
     implementation("com.android.tools.build:gradle:8.1.2")
     implementation("org.jetbrains:markdown:0.5.0")
-    implementation("com.squareup:javapoet:1.12.1")
+    implementation("com.squareup:javapoet:1.13.0")
 }
 
 kotlin {