(tooling) [devcontainer] Use gci lint + install tools

[tbavelier]

What does this PR do?

• Adds make install-tools as post start + defaults linter to the one used in CI

Motivation

#1671 enforces GCI, so let's ensure we use the right linter

Additional Notes

Anything else we should know when reviewing?

Minimum Agent Versions

Are there minimum versions of the Datadog Agent and/or Cluster Agent required?

• Agent: vX.Y.Z
• Cluster Agent: vX.Y.Z

Describe your test plan

Write there any instructions and details you may have to test your PR.

Checklist

• PR has at least one valid label: bug, enhancement, refactoring, documentation, tooling, and/or dependencies
• PR has a milestone or the qa/skip-qa label

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 49.49%. Comparing base (6231a15) to head (72d35d6).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1691   +/-   ##
=======================================
  Coverage   49.49%   49.49%           
=======================================
  Files         218      218           
  Lines       21244    21244           
=======================================
  Hits        10515    10515           
  Misses      10182    10182           
  Partials      547      547           

Flag	Coverage Δ
unittests	49.49% <ø> (ø)

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