Fix MacOS ARM build

[geofjamg]

Please check if the PR fulfills these requirements

• [x] The commit message follows our guidelines
• [x] Tests for the changes have been added (for bug fixes / features)
• [ ] Docs have been added / updated (for bug fixes / features)

Does this PR already have an issue describing the problem?

724

What kind of change does this PR introduce?

Bug fix

What is the current behavior?

Build fails on MacOS ARM because of a Java SA test which gives a different result at the 13 digits for a flow.

What is the new behavior (if this is a feature change)? We compare with the reference with only 12 digits.

Does this PR introduce a breaking change or deprecate an API?

• [ ] Yes
• [ ] No

If yes, please check if the following requirements are fulfilled

• [ ] The Breaking Change or Deprecated label has been added
• [ ] The migration steps are described in the following section

What changes might users need to make in their application due to this PR? (migration steps)

Other information: