Custom tool update from Configuration as Code plugins doesn't support labelSpecifics

See error log below :

2021-08-19 10:43:26.188+0000 [id=830] WARNING o.e.j.s.h.ContextHandler$Context#log: Error while serving http://jenkins_dev:8080/configuration-as-code/replace
io.jenkins.plugins.casc.ConfiguratorException: Cannot find configurator for type class [Lcom.synopsys.arc.jenkinsci.plugins.customtools.LabelSpecifics;
at io.jenkins.plugins.casc.impl.DefaultConfiguratorRegistry.lookupOrFail(DefaultConfiguratorRegistry.java:69)
at io.jenkins.plugins.casc.ConfigurationContext.lookupOrFail(ConfigurationContext.java:112)
at io.jenkins.plugins.casc.impl.configurators.DataBoundConfigurator.tryConstructor(DataBoundConfigurator.java:158)
at io.jenkins.plugins.casc.impl.configurators.DataBoundConfigurator.instance(DataBoundConfigurator.java:76)
at io.jenkins.plugins.casc.BaseConfigurator.configure(BaseConfigurator.java:267)
at io.jenkins.plugins.casc.impl.configurators.DataBoundConfigurator.check(DataBoundConfigurator.java:100)
at io.jenkins.plugins.casc.BaseConfigurator.configure(BaseConfigurator.java:344)
at io.jenkins.plugins.casc.BaseConfigurator.check(BaseConfigurator.java:287)
at io.jenkins.plugins.casc.BaseConfigurator.configure(BaseConfigurator.java:351)
at io.jenkins.plugins.casc.BaseConfigurator.check(BaseConfigurator.java:287)
at io.jenkins.plugins.casc.ConfigurationAsCode.lambda$checkWith$8(ConfigurationAsCode.java:777)
at io.jenkins.plugins.casc.ConfigurationAsCode.invokeWith(ConfigurationAsCode.java:713)
Caused: io.jenkins.plugins.casc.ConfiguratorException: tool: error configuring 'tool' with class io.jenkins.plugins.casc.impl.configurators.GlobalConfigurationCategoryConfigurator configurator
at io.jenkins.plugins.casc.ConfigurationAsCode.invokeWith(ConfigurationAsCode.java:719)
at io.jenkins.plugins.casc.ConfigurationAsCode.checkWith(ConfigurationAsCode.java:777)
at io.jenkins.plugins.casc.ConfigurationAsCode.configureWith(ConfigurationAsCode.java:762)
at io.jenkins.plugins.casc.ConfigurationAsCode.configureWith(ConfigurationAsCode.java:638)
at io.jenkins.plugins.casc.ConfigurationAsCode.configure(ConfigurationAsCode.java:307)
at io.jenkins.plugins.casc.ConfigurationAsCode.doReplace(ConfigurationAsCode.java:213)
at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:710)
at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:393)
Caused: java.lang.reflect.InvocationTargetException
at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:397)
at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:405)
at org.kohsuke.stapler.interceptor.RequirePOST$Processor.invoke(RequirePOST.java:77)
at org.kohsuke.stapler.PreInvokeInterceptedFunction.invoke(PreInvokeInterceptedFunction.java:26)
at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:208)
at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:141)
at org.kohsuke.stapler.MetaClass$11.doDispatch(MetaClass.java:536)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:766)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:898)
at org.kohsuke.stapler.MetaClass$9.dispatch(MetaClass.java:457)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:766)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:898)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:694)
at org.kohsuke.stapler.Stapler.service(Stapler.java:240)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799)
at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1626)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:157)
at jenkins.telemetry.impl.UserLanguages$AcceptLanguageFilter.doFilter(UserLanguages.java:129)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:154)
at jenkins.security.ResourceDomainFilter.doFilter(ResourceDomainFilter.java:81)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:154)
at com.atlassian.bitbucket.jenkins.internal.applink.oauth.serviceprovider.auth.OAuth1aRequestFilter.doFilter(OAuth1aRequestFilter.java:91)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:154)
at io.jenkins.blueocean.ResourceCacheControl.doFilter(ResourceCacheControl.java:134)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:154)
at io.jenkins.blueocean.auth.jwt.impl.JwtAuthenticationFilter.doFilter(JwtAuthenticationFilter.java:60)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:154)
at jenkins.metrics.impl.MetricsFilter.doFilter(MetricsFilter.java:125)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:154)
at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:160)
at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:155)
at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:93)
at jenkins.security.AcegiSecurityExceptionFilter.doFilter(AcegiSecurityExceptionFilter.java:52)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:98)
at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:53)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:98)