Consul_srv refactor

[ingcsmoreno]

What does this PR do?

The following features/changes were introduce:

• DNS queries are now made using C-Ares and asyncIO libraries, to be able to execute them in parallel and so improving performance (which went from ~35 requests/sec to ~110 request/sec).
• Randomize the IP returned when a service has more than one endpoint available. This actually was achieved by picking the first one returned, since CONSUL return the IPs in deferent order on each call.
• The default setting of the AGENT address now accepts the host "host.docker.internal" as valid now, to add compatibility with local environments.

How can I test it?

1. Get the mksp-compose repo, and set up the services:

   make resources_start
   make consul_import

2. Checkout this branch

3. Build the image:

   ./build_helper/image_build.sh

4. Run the image. You get logged in into a Python 3 shell.

   ./build_helper/image_run.sh

5. Run the following commands to install dependencies and prepare to run the consul_srv:

   python setup.py bdist_wheel --universal
   pip install .
   python

6. You can now check the DNS request returned the right data by running this commands:

   import consul_srv
   consul_srv.AGENT_URI = "host.docker.internal"
   heimdall = consul_srv.service("heimdall-staging", "https")
   heimdall._path("/status/data.json")

   You should get an output like 'https://35.169.11.217:443/status/data.json'.

Any relevant Ticket?

🎫 Consul Srv refactor of resolver class as [sc-69590]

Any extra or background information?

[shortcut-integration]

This pull request has been linked to Shortcut Story #69590: Consul-Srv refactor of resolver class as a POC.