[full-ci] chore(deps): bump PHP dependencies

[phil-davis]

Description

Lock file operations: 0 installs, 4 updates, 0 removals
  - Upgrading myclabs/deep-copy (1.13.0 => 1.13.1)
  - Upgrading phpunit/phpunit (9.6.22 => 9.6.23)
  - Upgrading roave/security-advisories (dev-latest 4a53506 => dev-latest 2145fcf)
  - Upgrading symfony/polyfill-php80 (v1.31.0 => v1.32.0)
Writing lock file

deep-copy is a dependency of phpunit. phpunit is a development tool, so these do not need to be in the changelog.

I'm doing this mainly to get a full run of CI and confirm that all is good after the recent updates to the PHP 7.4 docker images.

How Has This Been Tested?

CI

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Database schema changes (next release will require increase of minor version instead of patch)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Technical debt
• [ ] Tests only (no source changes)

Checklist:

• [ ] Code changes
• [ ] Unit tests added
• [ ] Acceptance tests added
• [ ] Documentation ticket raised:
• [ ] Changelog item, see TEMPLATE

[sonarqubecloud[bot]]

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 SonarQube Cloud

[phil-davis]

Done in #41377