build: FORMS-1758 update the cross-spawn dependency

[WalterMoar]

Description

The GitHub Dependabot process has created an alert for the cross-spawn dependency. To satisfy the requirements outlined in the Security Threat and Risk Assessment's (STRA) Statement of Acceptable Risks (SoAR), this vulnerability must be handled by updating the package version (or mitigated in some other way, if updating the package is not possible).
https://github.com/bcgov/common-hosted-form-service/security/dependabot/216

Notes

• cross-spawn is a dependency of eslint
• Our eslint is v8.40.0, but latest is v9.18.0
• Updating eslint to v9 would force updates of its dependencies, such as prettier
• For this vulnerability fix we’ll just update cross-spawn and deal with eslint and prettier later

Acceptance Criteria

• cross-spawn is no longer in dependabot’s list of vulnerabilities

Type of Change

build (change in build system or dependencies)

Checklist

• I have read the CONTRIBUTING doc
• I have checked that unit tests pass locally with my changes
• I have run the npm script lint on the frontend and backend
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)
• I have approval from the product owner for the contribution in this pull request

[jasonchung1871]

Manual testing of CHEFS features seems to work.