FIX: Removing unnecessary services reboots

[HelioCampos]

This PR does the follow:

1. Fix rubocop complains about unnecessary extra spaces;
2. Fix rubocop complains about change gsub to tr as we just change one character;
3. Fix start service failure making it just be restarted at the end of the configuration;
4. Improve ChefSpec to wait for an specific grafana version according to the version we want to install;

[HelioCampos]

@JonathanTron,

• I created a new PR as i had made my changes from the github page. Now I've made all the necessary changes. I also added a change in the before to let we choose the version of the grafana as necessary. Could you tell me if this works for you?

Regards,

[JonathanTron]

Thanks for the changes, I'm reviewing and testing it, once it's done I'll merge it.

[JonathanTron]

Thanks again for working it out!

[lock]

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