Missing npm dependencies may return an error

[x] All tests passed. If this feature is not already covered by the tests, I added new tests.
[x] All static analysis checks passed.
[x] This pull request is on the dev branch.
[x] I used gofmt for formatting the code before submitting the pull request.

Fixes https://github.com/jfrog/jfrog-cli/issues/1526 Followup https://github.com/jfrog/build-info-go/pull/78

In case there are missing dependencies in npm cache, we should warn about them and not fail the build. https://github.com/jfrog/build-info-go/pull/78 fix this issue partially - if the last dependency does not exist in the npm cache, an error may still be returned by CalculateNpmDependenciesList.

jfrog / build-info-go

Missing npm dependencies may return an error #81

[x] I used gofmt for formatting the code before submitting the pull request.