fix Dockerfile NodeJS version for openapi-generator-cli

[tarilabs]

Resolves #271

Description

How Has This Been Tested?

testing locally and on GHA by raising this PR, expecting green GHA while invoking Docker builds.

Merge criteria:

• The commits and have meaningful messages; the author will squash them after approval or will ask to merge with squash.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0497cf4) 74.16% compared to head (bce364f) 74.16%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #273   +/-   ##
=======================================
  Coverage   74.16%   74.16%           
=======================================
  Files          17       17           
  Lines        2295     2295           
  Branches       73       73           
=======================================
  Hits         1702     1702           
  Misses        426      426           
  Partials      167      167           

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[lampajr]

Thanks a lot @tarilabs for the fix!!

As we discussed we might think about removing the re-generation phase from the Dockerfile. In this case we can completely remove the download of external tools like protoc and openapi-generator-cli

[tarilabs]

As we discussed we might think about removing the re-generation phase from the Dockerfile. In this case we can completely remove the download of external tools like protoc and openapi-generator-cli

I concur, but for the moment, this PR would fix our (broken) build [for the time being]. Do you agree to proceed with this anyway, and eventually this fix would be superseeded by that proposal?

[lampajr]

I concur, but for the moment, this PR would fix our (broken) build [for the time being]. Do you agree to proceed with this anyway, and eventually this fix would be superseeded by that proposal?

Definitely agree with this ^^