Add access review CLI commands

Add prb access-review subcommands for campaigns (create,
update, delete, list, view, start, close, cancel, add/
remove source) entries (list, decide, decide-all, flag)
and sources (create, update, delete, list, view).

Signed-off-by: Aurélien Sibiril <81782+aureliensibiril@users.noreply.github.com>

pkg/cli/api/client.go

@@ -103,7 +103,7 @@ func (c *Client) DoRaw(
 		host = "https://" + host
 	}
 
-	url := fmt.Sprintf("%s%s", host, c.endpoint)
+	url := host + c.endpoint
 	req, err := http.NewRequest(http.MethodPost, url, bytes.NewReader(body))
 	if err != nil {
 		return nil, fmt.Errorf("cannot create HTTP request: %w", err)