Update docs to Spring Security 7.0.0-SNAPSHOT

Closes gh-2088

docs/spring-authorization-server-docs.gradle

@@ -54,7 +54,7 @@ dependencies {
 	implementation(platform("org.springframework.boot:spring-boot-dependencies:3.2.2")) {
 		exclude group: "org.springframework.security", module: "spring-security-oauth2-authorization-server"
 	}
-	implementation platform("org.springframework.security:spring-security-bom:6.5.0-M2")
+	implementation platform("org.springframework.security:spring-security-bom:7.0.0-SNAPSHOT")
 	implementation "org.springframework.boot:spring-boot-starter-web"
 	implementation "org.springframework.boot:spring-boot-starter-thymeleaf"
 	implementation "org.springframework.boot:spring-boot-starter-security"