feat: Run separate cairo integration test files as a separate Go test

[xiaolou86]

Resolves #201

First checking if the environment variable INTEGRATION_TESTS_FILTERS is set in the console.
And if not, then load it from the .env file.

[xiaolou86]

@rodrigo-pino @quasilyte @cicr99 Please help me to review. Thank you very much.

[MaksymMalicki]

Hey, I left a comment on the issue. Can you please check it?

[xiaolou86]

@MaksymMalicki I have made this improvement. Thanks for your suggestion.

[rodrigo-pino]

Great, I hadn't thought about having multiple filters. I think is a nice addition. Just leaving some minor comments

[rodrigo-pino]

It's great as it is. If you want to improve the PR a little more there are two things we can do:

1. Given the current code it might be nice to refactor into an object Filter which will have two functions:
   • new where it will initialize the filter
   • filter where it filters the code
2. Add a section to the readme explaining how to use filters

You can do one or two, or none. Just let me know. In case of none, I'll approve immediately.

[xiaolou86]

@rodrigo-pino I have refactored into an object Filter. Thank you very much for your suggestion and review.

[rodrigo-pino]

Great!

[TAdev0]

@xiaolou86 there is a linting error:

Error: Error return value of godotenv.Load is not checked (errcheck)

Can you resolve this?

[xiaolou86]

Error: Error return value of godotenv.Load is not checked (errcheck)

@TAdev0 Done. Thank you very much.