Use system jna - copied into dependencies/flatRepo

Index: Ghidra/Framework/Pty/Module.manifest
--- Ghidra/Framework/Pty/Module.manifest.orig
+++ Ghidra/Framework/Pty/Module.manifest
@@ -1,2 +1,2 @@
-MODULE FILE LICENSE: lib/jna-5.14.0.jar Apache License 2.0
-MODULE FILE LICENSE: lib/jna-platform-5.14.0.jar Apache License 2.0
\ No newline at end of file
+MODULE FILE LICENSE: lib/jna-${JNA_VER}.jar Apache License 2.0
+MODULE FILE LICENSE: lib/jna-platform-${JNA_VER}.jar Apache License 2.0
