Merging Release PRs fails the npm test

[marcusschiesser]

Reason: The test tries to use packages are being published from the release github action at the same time. This leads to errors like this:

Run npm add /home/runner/work/_temp/*.tgz
npm warn ERESOLVE overriding peer dependency
npm warn While resolving: @llamaindex/workflow@1.1.6
npm warn Found: @llamaindex/core@undefined
npm warn node_modules/@llamaindex/core
npm warn
npm warn Could not resolve dependency:
npm warn peer @llamaindex/core@"0.6.9" from @llamaindex/workflow@1.1.6
npm warn node_modules/@llamaindex/workflow
npm warn   @llamaindex/workflow@"file:../../../../_temp/llamaindex-workflow-1.1.6.tgz" from the root project
npm warn   1 more (llamaindex)
npm error code ETARGET
npm error notarget No matching version found for @llamaindex/core@0.6.9.
npm error notarget In most cases you or one of your dependencies are requesting
npm error notarget a package version that doesn't exist.
npm error A complete log of this run can be found in: /home/runner/.npm/_logs/2025-05-30T[15](https://github.com/run-llama/LlamaIndexTS/actions/runs/15350329470/job/43196648846#step:8:16)_40_57_875Z-debug-0.log
Error: Process completed with exit code 1.