Release 0.6.5 of the SPDX Maven Plugin

What's Changed

• enable Reproducible Builds by @hboutemy in #81
• Use URI instead of URL for document namespace by @goneall in #83
• Use project for remote repositories by @goneall in #85
• Fix dependency issue by @goneall in #86
• Add default file extension by @goneall in #88
• Update SPDX libraries to version 1.1.5 by @goneall in #89

New Contributors

• @hboutemy made their first contribution in #81

Full Changelog: v0.6.4...v0.6.5