chore(deps): update plugin openapi-generator to v7.7.0 (#1048)

Co-authored-by: playground-manager[bot] <126197455+playground-manager[bot]@users.noreply.github.com>
Co-authored-by: Ash Davies <[email protected]>

gradle/libs.versions.toml

@@ -132,4 +132,4 @@ kotlin-multiplatform = { id = "org.jetbrains.kotlin.multiplatform", version.ref
 kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "jetbrains-kotlin" }
 kotlinx-kover = "org.jetbrains.kotlinx.kover:0.8.2"
 ktlint = "org.jlleitschuh.gradle.ktlint:12.1.1"
-openapi-generator = "org.openapi.generator:7.6.0"
+openapi-generator = "org.openapi.generator:7.7.0"