chore(core-kernel): process env over .env

[sebastijankuzner]

Summary

This PR solves #3933

If process.env is defined it will be used even if variable is defined in .env file.

Checklist

• Ready to be merged

[codecov]

Codecov Report

Merging #3935 into develop will decrease coverage by 83.80%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##           develop    #3935       +/-   ##
============================================
- Coverage    97.56%   13.76%   -83.81%     
============================================
  Files          629      629               
  Lines        14540    14541        +1     
  Branches      1729     1730        +1     
============================================
- Hits         14186     2001    -12185     
- Misses         165    12425    +12260     
+ Partials       189      115       -74     

Flag	Coverage Δ
#functional	6.82% <0.00%> (-0.01%)	⬇️
#integration	9.85% <0.00%> (-0.01%)	⬇️
#unit	?

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Impacted Files	Coverage Δ
...s/core-kernel/src/services/config/drivers/local.ts	0.00% <0.00%> (-100.00%)	⬇️
packages/core/src/cli.ts	0.00% <0.00%> (-100.00%)	⬇️
packages/core-p2p/src/errors.ts	0.00% <0.00%> (-100.00%)	⬇️
packages/core-p2p/src/schemas.ts	0.00% <0.00%> (-100.00%)	⬇️
packages/core/src/commands/top.ts	0.00% <0.00%> (-100.00%)	⬇️
packages/core-cli/src/contracts.ts	0.00% <0.00%> (-100.00%)	⬇️
packages/core-forger/src/errors.ts	0.00% <0.00%> (-100.00%)	⬇️
packages/core-p2p/src/constants.ts	0.00% <0.00%> (-100.00%)	⬇️
packages/core-p2p/src/listeners.ts	0.00% <0.00%> (-100.00%)	⬇️
packages/core/src/commands/help.ts	0.00% <0.00%> (-100.00%)	⬇️
... and 560 more

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