Add dependabot action to stay up to date on dependencies (#2126)
Add dependabot action to stay up to date on dependencies (#2126)

* Add dependabot action to stay up to date on dependencies

Signed-off-by: Grant Griffiths <9e861e735dbffdbb5b2e8045785fd9c6c1c571e7@purestorage.com>
libopenstorage/openstorage,libopenstorage/openstorage,libopenstorage/openstorage