migrate heatshrink to conan v2

[AndreyMlashkin]

This conan v2 migration PR was generated by automatoc script version 10.
It uses simple find and replace technics. Feel free to extend it.

[uilianries]

Please, take into account the tools guidelines for your script

docs.conan.io/en/latest/reference/conanfile/tools.html

[prince-chrismc]

this rule is being enforced FYI #12765

[conan-center-bot]

All green in build 2 (527d165badbf4f6058407b763fba3392b4c90dc9):

• heatshrink/0.4.1@:
  All packages built successfully! (All logs)

  🔸 Informative: This recipe is not ready for Conan v2

  _{We have started the migration process to Conan v2 and exporting recipes successfully will be required in the future.
  This is just an informative note to gain awareness about the process, no need to take any action. The plan is to enforce smaller steps that are easier to fix and, eventually, this conan export step will work.
  See the recipe migration guide to know more about the changes required.}

  ERROR: Error loading conanfile at '/home/conan/w/prod_cci_PR-12745/recipes/heatshrink/all/conanfile.py': Unable to load conanfile in /home/conan/w/prod_cci_PR-12745/recipes/heatshrink/all/conanfile.py
    File "<frozen importlib._bootstrap_external>", line 728, in exec_module
    File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
    File "/home/conan/w/prod_cci_PR-12745/recipes/heatshrink/all/conanfile.py", line 4, in <module>
      from conans import CMake
  ImportError: cannot import name 'CMake' from 'conans' (/opt/pyenv/versions/3.7.13/lib/python3.7/site-packages/conans/__init__.py)
  

[prince-chrismc]

Since this was generated by a script and it requires manual intervention to get going, I am going to close this PR

Feel free to re-open if you'd like to address the comments