GH-249: Upgrade JCIFS to the latest version

Fixes https://github.com/spring-projects/spring-integration-extensions/issues/249

* Fix JCIFS in the README to `https`
* With this upgrade the project can be used with Java 17

spring-integration-smb/README.md

@@ -9,7 +9,7 @@ This module adds Spring Integration support for [Server Message Block][] (SMB).
 
 ## Version
 
-[Versions in Maven Repository](http://central.maven.org/maven2/org/springframework/integration/spring-integration-smb/)
+[Versions in Maven Repository](https://repo1.maven.org/maven2/org/springframework/integration/spring-integration-smb/)
 
 ## Using Maven
 

spring-integration-smb/build.gradle

@@ -43,7 +43,7 @@ compileTestJava {
 ext {
     idPrefix = 'smb'
 
-    jcifsVersion = '2.1.19'
+    jcifsVersion = '2.1.29'
     log4jVersion = '2.13.3'
     springIntegrationVersion = '5.3.1.RELEASE'