fix:add spring-cloud-starter-bootstrap dependency for example

spring-cloud-tencent-examples/metadata-transfer-example/pom.xml

@@ -40,5 +40,10 @@
 			<groupId>com.tencent.cloud</groupId>
 			<artifactId>spring-cloud-starter-tencent-metadata-transfer</artifactId>
 		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-bootstrap</artifactId>
+		</dependency>
     </dependencies>
 </project>

spring-cloud-tencent-examples/polaris-circuitbreaker-example/pom.xml

@@ -25,6 +25,11 @@
 			<groupId>com.tencent.cloud</groupId>
 			<artifactId>spring-cloud-starter-tencent-polaris-discovery</artifactId>
 		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-bootstrap</artifactId>
+		</dependency>
 	</dependencies>
 
 </project>

spring-cloud-tencent-examples/polaris-discovery-example/pom.xml

@@ -34,5 +34,10 @@
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-starter-openfeign</artifactId>
         </dependency>
+
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-bootstrap</artifactId>
+		</dependency>
     </dependencies>
 </project>

spring-cloud-tencent-examples/polaris-gateway-example/pom.xml

@@ -20,6 +20,13 @@
         <module>gateway-callee-service2</module>
     </modules>
 
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-bootstrap</artifactId>
+		</dependency>
+	</dependencies>
+
     <build>
         <plugins>
             <plugin>

spring-cloud-tencent-examples/polaris-ratelimit-example/pom.xml

@@ -17,4 +17,11 @@
     <modules>
         <module>ratelimit-callee-service</module>
     </modules>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-bootstrap</artifactId>
+		</dependency>
+	</dependencies>
 </project>

spring-cloud-tencent-examples/polaris-router-example/pom.xml

@@ -34,6 +34,11 @@
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-starter-openfeign</artifactId>
 		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-bootstrap</artifactId>
+		</dependency>
 	</dependencies>
 
 </project>

spring-cloud-tencent-examples/pom.xml

@@ -31,6 +31,13 @@
         <maven.deploy.skip>true</maven.deploy.skip>
     </properties>
 
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-bootstrap</artifactId>
+		</dependency>
+	</dependencies>
+
 	<dependencyManagement>
 		<dependencies>
 			<dependency>