Start building against Spring Framework 6.1.0-M3 snapshots

See gh-36443

gradle.properties

@@ -6,7 +6,7 @@ org.gradle.jvmargs=-Xmx2g -Dfile.encoding=UTF-8
 
 kotlinVersion=1.8.22
 nativeBuildToolsVersion=0.9.23
-springFrameworkVersion=6.1.0-M2
+springFrameworkVersion=6.1.0-SNAPSHOT
 tomcatVersion=10.1.11
 
 kotlin.stdlib.default.dependency=false

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/endpoint/invoke/convert/ConversionServiceParameterValueMapperTests.java

@@ -30,6 +30,7 @@ import org.springframework.format.support.DefaultFormattingConversionService;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.BDDMockito.given;
 import static org.mockito.BDDMockito.then;
 import static org.mockito.Mockito.mock;
@@ -55,7 +56,7 @@ class ConversionServiceParameterValueMapperTests {
 	void mapParameterWhenConversionServiceFailsShouldThrowParameterMappingException() {
 		ConversionService conversionService = mock(ConversionService.class);
 		RuntimeException error = new RuntimeException();
-		given(conversionService.convert(any(), any())).willThrow(error);
+		given(conversionService.convert(any(Object.class), eq(Integer.class))).willThrow(error);
 		ConversionServiceParameterValueMapper mapper = new ConversionServiceParameterValueMapper(conversionService);
 		assertThatExceptionOfType(ParameterMappingException.class)
 			.isThrownBy(() -> mapper.mapParameterValue(new TestOperationParameter(Integer.class), "123"))