Bump the gradle group with 1 update (#88)

Bumps the gradle group with 1 update: [software.amazon.smithy:smithy-model](https://github.com/smithy-lang/smithy).


Updates `software.amazon.smithy:smithy-model` from 1.45.0 to 1.46.0
- [Release notes](https://github.com/smithy-lang/smithy/releases)
- [Changelog](https://github.com/smithy-lang/smithy/blob/main/CHANGELOG.md)
- [Commits](smithy-lang/smithy@1.45.0...1.46.0)

---
updated-dependencies:
- dependency-name: software.amazon.smithy:smithy-model
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gradle
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

gradle-plugin-examples/tutorial/lib/build.gradle.kts

@@ -29,7 +29,7 @@ dependencies {
     // This dependency is used internally, and not exposed to consumers on their own compile classpath.
     implementation(libs.guava)
 
-    implementation("software.amazon.smithy:smithy-model:1.45.0")
+    implementation("software.amazon.smithy:smithy-model:1.46.0")
 }
 
 // Apply a specific Java toolchain to ease working on different environments.