Port the build to Gradle

Closes gh-19609
Closes gh-19608

spring-boot-tests/spring-boot-deployment-tests/build.gradle

@@ -0,0 +1,28 @@
+plugins {
+	id 'war'
+	id 'org.springframework.boot.conventions'
+	id 'org.springframework.boot.integration-test'
+}
+
+description = "Spring Boot Deployment Tests"
+
+dependencies {
+	implementation(project(':spring-boot-project:spring-boot-starters:spring-boot-starter-web')) {
+		exclude group: 'org.hibernate.validator'
+	}
+
+	intTestImplementation enforcedPlatform(project(path: ":spring-boot-project:spring-boot-parent"))
+	intTestImplementation project(':spring-boot-project:spring-boot-starters:spring-boot-starter-test')
+	intTestImplementation 'org.apache.httpcomponents:httpasyncclient'
+	intTestImplementation 'org.awaitility:awaitility'
+	intTestImplementation 'org.testcontainers:testcontainers'
+	intTestImplementation 'org.springframework:spring-web'
+
+	providedRuntime project(':spring-boot-project:spring-boot-starters:spring-boot-starter-tomcat')
+
+	runtimeOnly project(':spring-boot-project:spring-boot-starters:spring-boot-starter-actuator')
+}
+
+intTest {
+	dependsOn war
+}