Improve framework's logging

[Adamantios]

Proposed changes

Update the level of the logs to hide unnecessary debugging information from the services' devs and to highlight the severity of some messages. Also, slightly improve the messages.

Fixes

n/a

Types of changes

What types of changes does your code introduce? (A breaking change is a fix or feature that would cause existing functionality and APIs to not work as expected.) Put an x in the box that applies

• [ ] Non-breaking fix (non-breaking change which fixes an issue)
• [ ] Breaking fix (breaking change which fixes an issue)
• [ ] Non-breaking feature (non-breaking change which adds functionality)
• [ ] Breaking feature (breaking change which adds functionality)
• [x] Refactor (non-breaking change which changes implementation)
• [ ] Messy (mixture of the above - requires explanation!)

Checklist

Put an x in the boxes that apply.

• [x] I have read the CONTRIBUTING doc
• [x] I am making a pull request against the main branch (left side). Also you should start your branch off our main.
• [ ] Lint and unit tests pass locally with my changes
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have locally run services that could be impacted and they do not present failures derived from my changes
• [ ] Public-facing documentation has been updated with the changes affected by this PR. Even if the provided contents are not in their final form, all significant information must be included.
• [ ] Any backwards-incompatible/breaking change has been clearly documented in the upgrading document.

Further comments

n/a

[Adamantios]

LGTM. Just one question: almost every line in our logs is usually duplicated. Does this PR fix that?

This is not resolved here.

[codecov[bot]]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (56bd6ff) 94.29% compared to head (b7c6de9) 94.28%.

Files	Patch %	Lines
...lory/skills/abstract_round_abci/behaviour_utils.py	95.12%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2159 +/- ## ========================================== - Coverage 94.29% 94.28% -0.01% ========================================== Files 260 260 Lines 16027 16042 +15 ========================================== + Hits 15113 15126 +13 - Misses 914 916 +2 ``` | [Flag](https://app.codecov.io/gh/valory-xyz/open-autonomy/pull/2159/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=valory-xyz) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/valory-xyz/open-autonomy/pull/2159/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=valory-xyz) | `94.28% <97.14%> (-0.01%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=valory-xyz#carryforward-flags-in-the-pull-request-comment) to find out more.

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