Upgrade to Thymeleaf 3.1.0-M3

See gh-32628

spring-boot-project/spring-boot-autoconfigure/build.gradle

@@ -204,7 +204,6 @@ dependencies {
 	}
 	optional("org.thymeleaf:thymeleaf")
 	optional("org.thymeleaf:thymeleaf-spring6")
-	optional("org.thymeleaf.extras:thymeleaf-extras-java8time")
 	optional("org.thymeleaf.extras:thymeleaf-extras-springsecurity6")
 	optional("redis.clients:jedis")
 

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/thymeleaf/ThymeleafAutoConfiguration.java

@@ -23,7 +23,6 @@ import jakarta.servlet.DispatcherType;
 import nz.net.ultraq.thymeleaf.layoutdialect.LayoutDialect;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.thymeleaf.extras.java8time.dialect.Java8TimeDialect;
 import org.thymeleaf.extras.springsecurity6.dialect.SpringSecurityDialect;
 import org.thymeleaf.spring6.ISpringWebFluxTemplateEngine;
 import org.thymeleaf.spring6.SpringTemplateEngine;
@@ -252,16 +251,4 @@ public class ThymeleafAutoConfiguration {
 
 	}
 
-	@Configuration(proxyBeanMethods = false)
-	@ConditionalOnClass(Java8TimeDialect.class)
-	static class ThymeleafJava8TimeDialect {
-
-		@Bean
-		@ConditionalOnMissingBean
-		Java8TimeDialect java8TimeDialect() {
-			return new Java8TimeDialect();
-		}
-
-	}
-
 }

spring-boot-project/spring-boot-dependencies/build.gradle

@@ -1531,7 +1531,7 @@ bom {
 			]
 		}
 	}
-	library("Thymeleaf", "3.1.0.M2") {
+	library("Thymeleaf", "3.1.0.M3") {
 		group("org.thymeleaf") {
 			modules = [
 				"thymeleaf",
@@ -1546,13 +1546,6 @@ bom {
 			]
 		}
 	}
-	library("Thymeleaf Extras Java8Time", "3.0.4.RELEASE") {
-		group("org.thymeleaf.extras") {
-			modules = [
-				"thymeleaf-extras-java8time"
-			]
-		}
-	}
 	library("Thymeleaf Extras SpringSecurity", "3.1.0.M1") {
 		group("org.thymeleaf.extras") {
 			modules = [

spring-boot-project/spring-boot-starters/spring-boot-starter-thymeleaf/build.gradle

@@ -7,5 +7,4 @@ description = "Starter for building MVC web applications using Thymeleaf views"
 dependencies {
 	api(project(":spring-boot-project:spring-boot-starters:spring-boot-starter"))
 	api("org.thymeleaf:thymeleaf-spring6")
-	api("org.thymeleaf.extras:thymeleaf-extras-java8time")
 }