Fix deny.toml configuration for cargo-deny 2.0.13 compatibility

[Copilot]

The deny.toml configuration file used deprecated format and fields, causing cargo-deny 2.0.13 to fail with multiple errors including error[unexpected-value]: expected '["all", "workspace", "transitive", "none"]' and error[deprecated]: this key has been removed.

Changes

• Restructured configuration: Moved options to new section-based structure required by cargo-deny 2.0+
  • Created [graph] section for dependency graph options (targets, exclude, all-features, no-default-features)
  • Created [output] section for diagnostic output options (feature-depth)
• Updated advisories section:
  • Changed unmaintained from lint level "warn" to scope value "workspace"
  • Removed deprecated fields: vulnerability, yanked, notice
• Updated licenses section:
  • Removed deprecated fields: unlicensed, deny, copyleft, allow-osi-fsf-free, default
  • Kept only allow list with approved licenses

Behavior Preservation

• unmaintained = "workspace" checks direct workspace dependencies for unmaintained status (similar to previous warning behavior)
• License checking still enforces the same allow-list of approved licenses (MIT, Apache-2.0, BSD-3-Clause, Apache-2.0 WITH LLVM-exception, Unicode-DFS-2016)
• Advisory checks continue with continue-on-error: true in the workflow to prevent blocking on new advisories

The configuration now uses cargo-deny 2.0.13's structure while maintaining equivalent behavior to the previous setup.

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[leighmcculloch]

@copilot Fix the other ci failures in this pr.

[Copilot]

@copilot Fix the other ci failures in this pr.

Fixed in ba99e7b. Updated deny.toml to be compatible with cargo-deny 2.0.13 by:

• Moving graph-related options (targets, exclude, all-features, no-default-features) to [graph] section
• Moving feature-depth to [output] section
• Removing deprecated lint level fields (vulnerability, yanked, notice) from [advisories] section
• Removing deprecated fields (unlicensed, deny, copyleft, allow-osi-fsf-free, default) from [licenses] section

The configuration now uses the new cargo-deny 2.0+ structure while preserving the same behavior.