EC2 pricing through API, misc. config file changes

What's Changed

• copy s3 content update + llama3-8b triton g5.48xl config by @madhurprash in #244
• HF token bug fix + docs update for copy s3 content command by @madhurprash in #245
• EC2 instance utilization metrics by @madhurprash in #248
• Fallback pricing for EC2 by @dheerajoruganty in #249
• Update EC2 Metrics by @dheerajoruganty in #250
• Update Fallback Pricing YAML Path by @dheerajoruganty in #252
• chore(ec2): update byoe yml and docs by @tonyksong in #251

New Contributors

• @tonyksong made their first contribution in #251

Full Changelog: v2.0.20...v2.0.21