Remove duplicate contextionary url in dev setup

[aminst]

What's being changed:

There are duplicate CONTEXTIONARY_URL env variables in the run-dev-server file. This removes the unnecessary ones. This fixes #4764

Review checklist

• Documentation has been updated, if necessary. Link to changed documentation:
• Chaos pipeline run or not necessary. Link to pipeline:
• All new code is covered by tests where it is reasonable.
• Performance tests have been run or not necessary.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[aminst]

@trengrj Hi, I added the fix to the issue we discussed in #4806 here.

[aminst]

Hello @trengrj
The tests show that one test has failed, but I haven't changed anything related to the tests. How can I rerun the tests in the pipeline?

[trengrj]

Thanks @aminst I reran the tests and it looks good