Refactor rds to match other grafeas storage solution.

What's Changed

• fix typo by @maditya in #1
• Add github actions. by @zhaoyonghe in #2
• Bump github.com/aws/aws-sdk-go from 1.40.51 to 1.41.11 by @dependabot in #3
• Bump github.com/aws/aws-sdk-go from 1.41.11 to 1.41.12 by @dependabot in #4
• Bump github.com/aws/aws-sdk-go from 1.41.12 to 1.41.15 by @dependabot in #7
• Bump github.com/aws/aws-sdk-go from 1.41.15 to 1.41.19 by @dependabot in #11
• Bump github.com/aws/aws-sdk-go from 1.41.19 to 1.42.1 by @dependabot in #13

New Contributors

• @maditya made their first contribution in #1
• @zhaoyonghe made their first contribution in #2

Full Changelog: https://github.com/theparanoids/grafeas-rds/commits/v0.0.1