Permissions warning (#983)

## Changes
Show better error message for the "spawn UNKNOWN" errors. Helps with the
cases like this:
#947


## Tests
Manually

---------

Co-authored-by: Kartik Gupta <88345179+kartikgupta-db@users.noreply.github.com>

Author: ilia-db

packages/databricks-vscode/src/cli/CliWrapper.ts

@@ -123,6 +123,8 @@ export class CliWrapper {
                 if (e.message.includes("cannot parse config file")) {
                     msg =
                         "Failed to parse Databricks Config File, please make sure it's in the correct ini format";
+                } else if (e.message.includes("spawn UNKNOWN")) {
+                    msg = `Failed to parse Databricks Config File using databricks CLI, please make sure you have permissions to execute this binary: "${this.cliPath}"`;
                 }
             }
             ctx?.logger?.error(msg, e);