fix release workflow

[louisdussarps]

Change description

Do not specify pnpm version

Type of change

• Bug fix (fixes an issue)
• New feature (adds functionality)

Related issues

Pnpm version in github action conflict with the one in package.json
https://github.com/LaWebcapsule/d9/actions/runs/29258890071/job/86846489544

  Error: Error: Multiple versions of pnpm specified:
    - version 10 in the GitHub Action config with the key "version"
    - version pnpm@10.29.3 in the package.json with the key "packageManager"

Checklists

Development

• Lint rules pass locally
• Application changes have been tested thoroughly
• Automated tests covering modified code pass

Security

• Security impact of change has been considered
• Code follows company security practices and guidelines

Network

• Changes to network configurations have been reviewed
• Any newly exposed public endpoints or data have gone through security review

Code review

• Pull request has a descriptive title and context useful to a reviewer. Screenshots or screencasts are attached as
  necessary
• reviewers assigned
• Pull request linked to task tracker where applicable