Remove Hardcoded Delay with Status Check from Mozilla Observatory API

https://github.com/appsecco/kubeseco/blob/e2474142e6b0aa4ecaaa403b1d729709ef3050a9/apps/tools/mozilla-observatory-api/run.sh#L23

The mozilla observaory API integration script currently uses hardcoded sleep delay for scan to complete. We need to figure out if there is a status API that we can poll to figure out if a scan is complete instead of waiting for hardcoded delay.