Downgrade to SLF4J 1.7 for spring-boot-gradle-plugin tests

The downgrade is required for tests to run in Eclipse.

Closes spring-projectsgh-32626

Author: philwebb

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/build.gradle

@@ -11,8 +11,11 @@ description = "Spring Boot Gradle Plugins"
 
 configurations {
 	documentation
+	"testCompileClasspath" {
+		// Downgrade SLF4J is required for tests to run in Eclipse
+		resolutionStrategy.force("org.slf4j:slf4j-api:1.7.36")
+	}
 }
-
 dependencies {
 	asciidoctorExtensions("io.spring.asciidoctor:spring-asciidoctor-extensions-section-ids")