fix(jsonschema): corrects the regex for device volume paths (#268)

The regex for device volume mount and subpath does not account for files
and only accepts directories. However, this is not the expectation as we
can mount either files or directories. This commit corrects the regex.

Wrike Ticket: https://www.wrike.com/open.htm?id=1295041413

riocli/jsonschema/schemas/deployment-schema.yaml

@@ -90,10 +90,10 @@ definitions:
         type: string
       mountPath:
         type: string
-        pattern: '^([\\/][a-z0-9\s\-_@\-^!#$%&.]*)+(\.[a-z][a-z0-9]+)?$'
+        pattern: '^\/$|(^(?=\/)|^\.|^\.\.)(\/(?=[^/\0])[^/\0]+)*\/?$'
       subPath:
         type: string
-        pattern: '^([\\/][a-z0-9\s\-_@\-^!#$%&.]*)+(\.[a-z][a-z0-9]+)?$'
+        pattern: '^\/$|(^(?=\/)|^\.|^\.\.)(\/(?=[^/\0])[^/\0]+)*\/?$'
     additionalProperties: false