feat: local dev environment (backport #1554)

[mergify]

This is an automatic backport of pull request #1554 done by Mergify.
Cherry-pick of f5472e0 has failed:

On branch mergify/bp/v8.x/pr-1554
Your branch is up to date with 'origin/v8.x'.

You are currently cherry-picking commit f5472e0.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   Dockerfile
	new file:   tests/localosmosis/Dockerfile
	new file:   tests/localosmosis/README.md
	new file:   tests/localosmosis/docker-compose.yml
	new file:   tests/localosmosis/keys.sh
	new file:   tests/localosmosis/setup.sh

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   CHANGELOG.md
	both modified:   Makefile

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[codecov-commenter]

Codecov Report

Merging #1654 (8ccf9c7) into v8.x (dbeac2c) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             v8.x    #1654   +/-   ##
=======================================
  Coverage   20.66%   20.66%           
=======================================
  Files         204      204           
  Lines       25993    25993           
=======================================
  Hits         5372     5372           
  Misses      19639    19639           
  Partials      982      982           

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