Update docs/samples to Spring Security 7.0.0-M2

Closes gh-2185

docs/spring-authorization-server-docs.gradle

@@ -54,7 +54,7 @@ dependencies {
 	implementation(platform("org.springframework.boot:spring-boot-dependencies:4.0.0-SNAPSHOT")) {
 		exclude group: "org.springframework.security", module: "spring-security-oauth2-authorization-server"
 	}
-	implementation platform("org.springframework.security:spring-security-bom:7.0.0-SNAPSHOT")
+	implementation platform("org.springframework.security:spring-security-bom:7.0.0-M2")
 	implementation "org.springframework.boot:spring-boot-starter-web"
 	implementation "org.springframework.boot:spring-boot-starter-thymeleaf"
 	implementation "org.springframework.boot:spring-boot-starter-security"

samples/backend-for-spa-client/gradle.properties

@@ -1 +1 @@
-spring-security.version=7.0.0-SNAPSHOT
+spring-security.version=7.0.0-M2

samples/default-authorizationserver/gradle.properties

@@ -1 +1 @@
-spring-security.version=7.0.0-SNAPSHOT
+spring-security.version=7.0.0-M2

samples/demo-authorizationserver/gradle.properties

@@ -1 +1 @@
-spring-security.version=7.0.0-SNAPSHOT
+spring-security.version=7.0.0-M2

samples/demo-client/gradle.properties

@@ -1 +1 @@
-spring-security.version=7.0.0-SNAPSHOT
+spring-security.version=7.0.0-M2

samples/messages-resource/gradle.properties

@@ -1 +1 @@
-spring-security.version=7.0.0-SNAPSHOT
+spring-security.version=7.0.0-M2

samples/users-resource/gradle.properties

@@ -1 +1 @@
-spring-security.version=7.0.0-SNAPSHOT
+spring-security.version=7.0.0-M2