Bump apache httpcomponents to 4.5.13 (#97)

And stop bundling it

pom.xml

@@ -87,13 +87,21 @@ under the License.
   </pluginRepositories>
 
   <dependencies>
+    <dependency>
+      <groupId>org.jenkins-ci.plugins</groupId>
+      <artifactId>apache-httpcomponents-client-4-api</artifactId>
+    </dependency>
     <dependency>
       <groupId>org.pac4j</groupId>
       <artifactId>pac4j-saml</artifactId>
       <!-- versions 4.x.x require JDK 11 -->
       <version>3.9.0</version>
       <optional>false</optional>
       <exclusions>
+        <exclusion>
+          <groupId>org.apache.httpcomponents</groupId>
+          <artifactId>httpclient</artifactId>
+        </exclusion>
         <exclusion>
           <groupId>org.springframework</groupId>
           <artifactId>spring-beans</artifactId>
@@ -239,7 +247,7 @@ under the License.
       <dependency>
         <groupId>io.jenkins.tools.bom</groupId>
         <artifactId>bom-2.277.x</artifactId>
-        <version>26</version>
+        <version>27</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>