rust-gvm 0.8.0

rust-gvm v0.8.0

rust-gvm v0.8.0 adds the complete typed asynchronous report-export lifecycle
used by current gvmd and preserves additional typed fields that v0.7 silently
dropped. It also tightens stateful mock-server fidelity and bounds retained
command history.

Callers upgrading from v0.7.0 should review the
v0.8.0 migration guide.
Existing request calls remain available, but struct-literal construction of
GetAgentSupportBundleRequest must initialize its new encryption field, and
exhaustive consumers should account for the new typed projection payloads.

Highlights:

• typed queue, poll, download, and cancellation operations for scan, audit, and
  delta report exports, gated by GMP 22.7 plus positive command discovery;
• source-shaped export metadata and binary download responses;
• repeatable completed-export downloads aligned with gvmd's retention-only
  cleanup contract;
• preserved result-NVT type metadata, NVT discovery and Markdown technical
  details, and web_application_vt information payloads;
• forward-compatible handling of unknown future get_info subtypes;
• optional support-bundle encryption control with encrypted-by-default omission
  semantics;
• normalized discovered command names, stricter malformed-schedule rejection,
  correct task-tag membership filtering, and bounded mock command history;
• release binaries for five targets, each with a SHA-256 checksum;
• the Linux amd64/arm64 mock-server image at
  ghcr.io/greenbone-hive/gvm-mock-server:v0.8.0 (no moving latest tag);
• CycloneDX JSON and XML SBOMs, an SBOM quality report, checksums, and Sigstore
  provenance for downloadable artifacts and the container image.

The release artifacts are built from the immutable v0.8.0 tag and verified
against its exact qualified commit before publication completes.