Update Helloworld to 0.6.1

[tovbinm]

Related issues
Helloworld is on 0.6.0

Describe the proposed solution
Update to 0.6.1

Describe alternatives you've considered
N/A

[codecov]

Codecov Report

Merging #405 into master will increase coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #405      +/-   ##
==========================================
+ Coverage   86.94%   86.95%   +<.01%     
==========================================
  Files         337      337              
  Lines       11060    11060              
  Branches      357      591     +234     
==========================================
+ Hits         9616     9617       +1     
+ Misses       1444     1443       -1

Impacted Files	Coverage Δ
...in/scala/com/salesforce/op/cli/gen/AvroField.scala	71.79% <0%> (-5.13%)	⬇️
.../op/features/types/FeatureTypeSparkConverter.scala	99.11% <0%> (+0.88%)	⬆️
...es/src/main/scala/com/salesforce/op/OpParams.scala	89.79% <0%> (+4.08%)	⬆️

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