Bug fix release v1.6.3

What's Changed

• update helm chart to v1.6.2 by @nitisht in #995
• docs: Added build attestation verification docs by @praveen5959 in #996
• doc: issue template for bug reports by @de-sh in #998
• feat: env_logger ~> tracing_subscriber by @de-sh in #997
• Update USERS.md by @nitisht in #1002
• fix: port 80 ignored in ingestor endpoint by @nikhilsinhaparseable in #1004
• fix: ignore invalid/corrupt staging files by @nikhilsinhaparseable in #990
• Ingestor querier sync by @nikhilsinhaparseable in #1003
• refactor: restructure as a library by @de-sh in #1000
• fix: ingest new stream for distributed by @nikhilsinhaparseable in #1005
• prepare for release v1.6.3 by @nitisht in #1007

Full Changelog: v1.6.2...v1.6.3