Remove annotation for returning tuple

[Quasar985]

Prerequisites

• Reviewed the checklist

• Reviewed feedback from the "Sonar Cloud" bot. Note that you have to wait
  for the "CI / Unit Tests") to complete first. Failed Unit tests can be
  debugged by adding the label "verbose logging" to the GitHub PR.

Description of the Change

Removed an annotation in constellation_client. This was causing issues on the Linux machine, because it was running an old version of python. To remedy, a better description of the function and the expected return types were added in a comment above the function.

Alternate Designs

N/A

Why Should This Be In Core?

N/A

Benefits

Script works on old python versions

Possible Drawbacks

None

Verification Process

1. Open consty,
2. Tools -> Start Jupyter Notebook
3. Import constellation_client
4. Observe no errors are thrown when importing

Applicable Issues

#2176

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud