Rake upgrade

v0.0.13

Upgrade rake to version 12.3.3

Support IG tag searching

Adds feature for searching media by hash-tag

#Search for a tag, 
client.tag_media(page_token, tag_name)
#fields can be "media_type,comments_count,like_count,media_url,permalink"
fields="media_url,permalink"
client.tag_media(page_token, tag_name, fields)
#custom edge can be provided, default is 'top_media'
tag_media = client.tag_media(page_token, tag_name, edge: "recent_media")
# Note: We can run `tag_media.next_page` to fetch next set of results
# additional arguent options can also be passed for page params i.e before/after/limit etc