fix: silent SfdxCommand compilation issue

[scolladon]

What does this pull request contains? Explain your changes.

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• Added for new features.
• Changed for changes in existing functionality.
• Deprecated for soon-to-be removed features.
• Removed for now removed features.
• Fixed for any bug fixes.
• Security in case of vulnerabilities.

Explain your changes

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Reapply tsconfig.json extends to salesforce ts devconfig compilation settings

Does this close any currently open issues?

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closes #120

Where has this been tested?

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Operating System: Darwin Kernel Version 18.7.0: Tue Jan 12 22:04:47 PST 2021; root:xnu-4903.278.56~1/RELEASE_X86_64

yarn version: 1.22.10

node version: v14.16.0

git version: git version 2.31.1

sfdx version: node-v14.16.0

sgd plugin version: 4.3.0

[codecov]

Codecov Report

Merging #121 (0f356e6) into master (8121d3e) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #121   +/-   ##
=======================================
  Coverage   99.24%   99.24%           
=======================================
  Files          18       18           
  Lines         395      395           
=======================================
  Hits          392      392           
  Misses          3        3           

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