docs(tracer): extract code examples

[michaelbrewer]

Issue number:

• Split from: Docs: Move code snippets into dedicated python files add formatting and linting, fixing any outstanding errors #1064
• Original pr: fix(docs): extract code snippets into dedicated python files and fix examples #1065

Summary

Extract code examples from the tracer documentation

Changes

Please provide a summary of what's being changed

Changes:

• Extract code examples
• Run isort and black
• Update line highlights
• Open external links in new tab
• Add make task to format and lint examples to prevent future errors

Corrections in this PR:

• Open external links in a new tab for tracer page

User experience

Please share what the user experience looks like before and after this change

Hosted version is here: https://gyft.github.io/aws-lambda-powertools-python/latest/

Checklist

If your change doesn't seem to apply, please leave them unchecked.

• Meet tenets criteria
• I have performed a self-review of my this change
• Changes are tested
• Changes are documented
• PR title follows conventional commit semantics

Is this a breaking change?

RFC issue number:

Checklist:

• Migration process documented
• Implement warnings (if it can live side by side)

Acknowledgment

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

Disclaimer: We value your time and bandwidth. As such, any pull requests created on non-triaged issues might not be successful.

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View rendered docs/core/tracer.md

[codecov-commenter]

Codecov Report

Merging #1126 (b3fbcc3) into develop (f62d07a) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #1126   +/-   ##
========================================
  Coverage    99.88%   99.88%           
========================================
  Files          119      119           
  Lines         5423     5423           
  Branches       618      618           
========================================
  Hits          5417     5417           
  Misses           2        2           
  Partials         4        4           

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