Elastic agent gets stuck trying to install application

If the elastic agent, managed by fleet, finds the application to be installed on its `download` folder, it'll unpack and install. However if the install operation fails, it'll retry it indefinitely, preventing any other application to be installed. Others could succeed.

What I did:
- create a tar ball adding the `endpoint-security to data/elastic-agent-*/download/`
- the endpoint-security was "broken", the uncompressed folder was different from the .tar.gz file. The uncompressed folder would have the `-SNAPSHOT` on the name, while the tar.gz file did not.
- had a policy including the endpoint-security, system integration and monitoring

For the time I observed, the elastic-agent was stuck in the following loop:
- start the install procedure
- unpack the endpoint-security
- not find the unpacked folder (as the name was different from what the elastic-agent was looking for)
- remove the tmp folder and its contents
- start the install procedure again

Here are some debug logs showing it stuck on the retry while trying to install the elastic-endpoint:
- [gist](https://gist.github.com/AndersonQ/47c2c0e2893e154ef98ebcfe88fe3df6)
- image: