Add ability to enforce SSL in S3 Destination connector

[ryankfu]

Tell us about the problem you're trying to solve

S3 does not always enforce SSL

Describe the solution you’d like

Implement configuration for adding ssl parameter for S3 destination

Describe the alternative you’ve considered or used

A clear and concise description of any alternative solutions or features you've considered or are using today.

Additional context

S3 bucket policy ssl-requests-only

Are you willing to submit a PR?

Remove this with your answer :-)

[grishick]

Note from backlog grooming: rather than creating a new strict-encrypt connector for S3 destination, we can use the environment variable (see PostgresSourceStrictEncrypt for the example.

Scope of this ticket (definition of done):

• update the documentation to recommend that users set bucket policies that enforce TLS (see AWS docs)
• configure S3 client to always use TLS
• check that custom endpoint (if one is passed) uses HTTPS in check method

[grishick]

Hey team! Please add your planning poker estimate with Zenhub @edgao @rodireich @ryankfu @subodh1810 @tuliren

[grishick]

Relevant note about NodeJS library: https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/enforcing-tls.html

[grishick]

Based on this doc, all access to S3 on AWS is with TLS: https://docs.aws.amazon.com/AmazonS3/latest/userguide/network-isolation.html

[grishick]

Reading the JavaDoc for S3 client it appears it is configured to use HTTPS by default already