[ci] adds leo add and leo remove CI workflow

[damirka]

Follow up on #551 and #560

What is done

Added CI workflow for leo login, leo add and leo remove commands

Requires ALEO_PM_USERNAME and ALEO_PM_PASSWORD to be set in secrets

Motivation

More tests on CLI, improving developer experience

[codecov]

Codecov Report

Merging #569 (2aea36a) into master (dae45d9) will decrease coverage by 0.35%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #569      +/-   ##
==========================================
- Coverage   74.73%   74.37%   -0.36%     
==========================================
  Files         472      472              
  Lines       13932    13932              
==========================================
- Hits        10412    10362      -50     
- Misses       3520     3570      +50     

Impacted Files	Coverage Δ
compiler/src/expression/arithmetic/pow.rs	0.00% <0.00%> (-27.78%)	⬇️
compiler/src/expression/arithmetic/mul.rs	0.00% <0.00%> (-23.81%)	⬇️
ast/src/expression/binary.rs	80.55% <0.00%> (-5.56%)	⬇️
compiler/src/value/integer/integer.rs	91.86% <0.00%> (-5.43%)	⬇️
compiler/tests/integers/uint_macro.rs	93.40% <0.00%> (-3.30%)	⬇️
compiler/tests/integers/int_macro.rs	92.15% <0.00%> (-2.95%)	⬇️
grammar/src/ast.rs	93.25% <0.00%> (-2.25%)	⬇️
compiler/src/expression/expression.rs	95.00% <0.00%> (-1.67%)	⬇️
ast/src/expression/mod.rs	85.02% <0.00%> (-0.89%)	⬇️

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[damons]

Rubber-stamping my review on this as I'm just watching progress. Others who are reviewing: Please make sure this PR is complete and sufficient.

[damirka]

Impossible to test from fork, did #579 instead.