Updates clj-ssh to latest JSch 0.2.15 (#75)

Upgrades JSch to the latest 0.2.15 version and aligns JNA version to
5.14.0.

NOTE: this change will transitively depend on the latest 1.77 Bouncy
      Castle version.

project.clj

@@ -11,8 +11,8 @@
 
   :dependencies [[org.clojure/tools.logging "1.2.4"
                   :exclusions [org.clojure/clojure]]
-                 [com.github.mwiede/jsch "0.2.13"]
-                 [net.java.dev.jna/jna "5.13.0"]
+                 [com.github.mwiede/jsch "0.2.15"]
+                 [net.java.dev.jna/jna "5.14.0"]
                  [com.kohlschutter.junixsocket/junixsocket-core "2.8.3" :extension "pom"]]
   :jvm-opts ["-Djava.awt.headless=true"]
   :profiles {:provided {:dependencies [[org.clojure/clojure "1.10.1"]]}})