v2.1.21

What's Changed

• 📝 Genesys source - document the delay in between API calls by @Diego-H-S in #1045
• 🐛 Fix coverage counting unit test files by @trymzet in #1068
• 🐛 Fix credentials resolution logic in the example by @trymzet in #1069
• ✨ Add BigQuery source and Prefect tasks by @Diego-H-S in #1035
• ♻️ Simplify the get_source_config() util by @trymzet in #1070
• ⬆️ Upgrade pyrfc to 3.x by @trymzet in #1072
• 🎨 Change append to concat in Epicor source by @angelika233 in #1075

Full Changelog: v2.1.20...v2.1.21