Add Groovy 5 version

Author: leonard84

spock-website/index.html

@@ -79,6 +79,7 @@ <h2 class="text-3xl md:text-4xl font-bold mb-8 text-gray-100" data-aos="fade-up"
         <a href="https://search.maven.org/search?q=g:org.spockframework" target="_blank"><img src="https://img.shields.io/maven-central/v/org.spockframework/spock-core?style=for-the-badge&label=Latest%20Version&labelColor=374151&color=1562ae&versionSuffix=groovy-2.5" alt="Spock Latest Version for Groovy 2.5"></a>
         <a href="https://search.maven.org/search?q=g:org.spockframework" target="_blank"><img src="https://img.shields.io/maven-central/v/org.spockframework/spock-core?style=for-the-badge&label=Latest%20Version&labelColor=374151&color=1562ae&versionSuffix=groovy-3.0" alt="Spock Latest Version for Groovy 3.0"></a>
         <a href="https://search.maven.org/search?q=g:org.spockframework" target="_blank"><img src="https://img.shields.io/maven-central/v/org.spockframework/spock-core?style=for-the-badge&label=Latest%20Version&labelColor=374151&color=1562ae&versionSuffix=groovy-4.0" alt="Spock Latest Version for Groovy 4.0"></a>
+        <a href="https://search.maven.org/search?q=g:org.spockframework" target="_blank"><img src="https://img.shields.io/maven-central/v/org.spockframework/spock-core?style=for-the-badge&label=Latest%20Version&labelColor=374151&color=1562ae&versionSuffix=groovy-5.0" alt="Spock Latest Version for Groovy 5.0"></a>
     </div>
 </section>