SEC-2648: Update to gradle-tomcat-plugin:1.2.3 for samples

build.gradle

@@ -8,7 +8,7 @@ buildscript {
         classpath("org.springframework.build.gradle:propdeps-plugin:0.0.6")
         classpath("org.springframework.build.gradle:bundlor-plugin:0.1.2")
         classpath("org.springframework.build.gradle:spring-io-plugin:0.0.3.RELEASE")
-        classpath("org.gradle.api.plugins:gradle-tomcat-plugin:0.9.8")
+        classpath("org.gradle.api.plugins:gradle-tomcat-plugin:1.2.3")
         classpath('me.champeau.gradle:gradle-javadoc-hotfix-plugin:0.1')
         classpath('org.asciidoctor:asciidoctor-gradle-plugin:0.7.0')
         classpath('org.asciidoctor:asciidoctor-java-integration:0.1.4.preview.1')