feat(api): add workload identity access token issued event (#3601)

Source: https://github.com/openai/openai/pull/1280093

Adds the new `tenant.workload_identity.access_token.issued` audit-log
event to generated request and response types.

Generated with Castiron from OpenAPI SHA
`11854aef674352d3f9cd5c0a7038f079a7bbac06` and validated with the
public-baseline dry-run workflow.

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Co-authored-by: Castiron Bot <castiron@openai.com>