fixed a bug where an errorCode is not transformed

[jonathanlukas]

Description

Since 0.6, this was broken. Now it works (and is tested)

Additional context

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Testing your changes

One new unit test asserts the presence of an error code after the conversion

Types of changes

• Bug fix (non-breaking change which fixes an existing open issue)
• New feature (non-breaking change which adds functionality to an extension)
• Breaking change (fix or feature that would cause existing functionality of an extension to change)
• Documentation update (changes made to an existing piece of documentation)

Checklist:

• My code adheres to the syntax used by this extension.
• My pull request requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the Camunda Community Hub documentation.
• I have read the Pull Request Process documentation.
• I have added or suggested tests to cover my changes suggested in this pull request.
• All new and existing CI/CD tests passed.
• I will /assign myself this issue, and add the relevant [issue labels] to it if they are not automatically generated by Probot.
• I will tag @camunda-community-hub/devrel in a new comment on this issue if 30 days have passed since my pull request was opened and I have not received a response from the extension's maintainer.

[github-actions]

Test Results

  25 files  +  25    25 suites  +25   2m 15s ⏱️ + 2m 15s
189 tests +189  189 ✔️ +189  0 💤 ±0  0 ❌ ±0 
307 runs  +307  307 ✔️ +307  0 💤 ±0  0 ❌ ±0 

Results for commit 45be050. ± Comparison against base commit f11415a.

♻️ This comment has been updated with latest results.