add github action workflow for code coverage and notification

[kha7iq]

Description

This PR will provide a github action workflow for building coverage & uploading it to codecove.
This will be triggered on push request to master/develop/ and any tag with release pattern.
Needs CODECOV_TOKEN under github secrets for the repo.

2nd workflow is only triggered for pull_request.
On each pull request it will send a message to specified Telegram channel with head reference of branch, you can change the messages to anything.

Need to set github secret TELEGRAM_TOKEN , this is bot token
and TELEGRAM_CHANNELS, this is target telegram channel.

Fixes # #52

Type of change

• New feature (non-breaking change which adds functionality)

[codecov]

Codecov Report

Merging #73 (336db15) into master (fb86a33) will decrease coverage by 0.28%.
The diff coverage is n/a.

❗ Current head 336db15 differs from pull request most recent head 8e47065. Consider uploading reports for the commit 8e47065 to get more accurate results

@@            Coverage Diff             @@
##           master      #73      +/-   ##
==========================================
- Coverage   90.07%   89.79%   -0.29%     
==========================================
  Files           1        1              
  Lines         252      245       -7     
==========================================
- Hits          227      220       -7     
  Misses         17       17              
  Partials        8        8              

Impacted Files	Coverage Δ
cleanenv.go	89.79% <0.00%> (-0.29%)	⬇️

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[ilyakaznacheev]

Thank you @kha7iq