Added specific exit-code for "missing programmer" kind of errors.

[cmaglie]

Please check if the PR fulfills these requirements

See how to contribute

• The PR has no duplicates (please search among the Pull Requests
  before creating one)
• The PR follows
  our contributing guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• UPGRADING.md has been updated with a migration guide (for breaking changes)
• configuration.schema.json updated if new parameters are added.

What kind of change does this PR introduce?

arduino-cli now returns exit-code 11 (ErrMissingProgrammer) if the programmer is required to perform an upload/debug action and is not specified.

What is the current behavior?

The CLI returns a generic exit code 1 (ErrGeneric)

What is the new behavior?

Does this PR introduce a breaking change, and is titled accordingly?

Other information

Fix #1762

[codecov]

Codecov Report

Attention: 37 lines in your changes are missing coverage. Please review.

Comparison is base (6c86fa2) 67.27% compared to head (c50355f) 67.26%.
Report is 3 commits behind head on master.

Files	Patch %	Lines
internal/cli/debug/debug.go	0.00%	10 Missing ⚠️
internal/cli/burnbootloader/burnbootloader.go	0.00%	8 Missing ⚠️
internal/cli/upload/upload.go	0.00%	8 Missing ⚠️
internal/cli/compile/compile.go	25.00%	4 Missing and 2 partials ⚠️
arduino/errors.go	0.00%	2 Missing ⚠️
commands/daemon/debug.go	0.00%	2 Missing ⚠️
arduino/builder/internal/detector/detector.go	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2429      +/-   ##
==========================================
- Coverage   67.27%   67.26%   -0.02%     
==========================================
  Files         210      210              
  Lines       20523    20555      +32     
==========================================
+ Hits        13807    13826      +19     
- Misses       5578     5591      +13     
  Partials     1138     1138              

Flag	Coverage Δ
unit	67.26% <17.77%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.