QCEC 2.0: Release Candidate 8

What's Changed

• 🐍🔧 Specify Metadata via PEP 621 by @burgholzer in #124
• 🔧 Add Issue and PR templates by @burgholzer in #125
• 📝 Updated docs with the JETCAS Publication. by @pehamTom in #127
• ⚗️ Updates to cpp-linter to v2 by @burgholzer in #130, #132
• 🔧 Update CodeQL configuration by @burgholzer in #133
• 🪝 Fix and update flake8 config by @burgholzer in #122
• ⬆️🪝 update pre-commit hooks by @pre-commit-ci in #114, #126, #134
• 🔧 Update dependabot config by @burgholzer in #123

Full Changelog: v2.0.0-rc7...v2.0.0-rc8