fix: expression evaluator do not error that much

[ChristopherHX]

Why does the new expression evaluator returns far more errors than the original?
I can't get fromJSON('[0,1]')['1.1'] to work, it doesn't return null.

Closes #1071
Closes #1115

[github-actions]

MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ CREDENTIALS	secretlint	yes		no	0.86s
✅ EDITORCONFIG	editorconfig-checker	2		0	0.52s
✅ GIT	git_diff	yes		no	0.01s

See errors details in artifact MegaLinter reports on CI Job page
Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff

[codecov]

Codecov Report

Merging #1137 (17b16dc) into master (4f8da0a) will increase coverage by 2.55%.
The diff coverage is 79.21%.

@@            Coverage Diff             @@
##           master    #1137      +/-   ##
==========================================
+ Coverage   57.50%   60.06%   +2.55%     
==========================================
  Files          32       39       +7     
  Lines        4594     4938     +344     
==========================================
+ Hits         2642     2966     +324     
  Misses       1729     1729              
- Partials      223      243      +20     

Impacted Files	Coverage Δ
pkg/model/action.go	0.00% <ø> (ø)
pkg/model/planner.go	50.73% <ø> (+0.32%)	⬆️
pkg/model/workflow.go	50.91% <ø> (ø)
pkg/container/docker_run.go	5.11% <2.50%> (-0.43%)	⬇️
pkg/common/git.go	49.31% <28.57%> (-0.52%)	⬇️
pkg/container/file_collector.go	44.85% <44.85%> (ø)
pkg/runner/logger.go	66.00% <67.56%> (+0.56%)	⬆️
pkg/runner/runner.go	73.72% <73.68%> (-2.75%)	⬇️
pkg/runner/expression.go	89.31% <78.26%> (-1.51%)	⬇️
pkg/exprparser/interpreter.go	75.54% <78.94%> (+2.14%)	⬆️
... and 19 more

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