`dap-go': bump vscode-go version

Version 0.15.0 of vscode-go does not handle maps correctly, adding nulls to
them. This bug is fixed in version 0.22.1, so bump it in `dap-go-setup'.

The layout of the extension changed: the executable that needs to be run is no
longer goDebug.js, bug dist/debugAdapter.js. As such, users will need to
manually update `dap-go' using `C-u dap-go-setup'.

Fixes #399.

Author: nbfalcon

dap-go.el

@@ -36,7 +36,7 @@
   :type 'string)
 
 (defcustom dap-go-debug-program `("node"
-                                  ,(f-join dap-go-debug-path "extension/out/src/debugAdapter/goDebug.js"))
+                                  ,(f-join dap-go-debug-path "extension/dist/debugAdapter.js"))
   "The path to the go debugger."
   :group 'dap-go
   :type '(repeat string))
@@ -47,7 +47,7 @@
   :group 'dap-go
   :type 'string)
 
-(dap-utils-vscode-setup-function "dap-go" "golang" "go" dap-go-debug-path "0.15.0")
+(dap-utils-vscode-setup-function "dap-go" "golang" "go" dap-go-debug-path "0.22.1")
 
 (defun dap-go--populate-default-args (conf)
   "Populate CONF with the default arguments."