Remove hardcoded port from S3 config

**Describe the bug**
The port for the S3 client is hardcoded to 443. It should use the default http/https ports unless specified otherwise.

**Steps to reproduce**

**Expected behavior**
- [ ] S3 Use the default ports unless configured not to
- [ ] Tests verifying the fix are added

**Additional context**

**Estimation of size**: small

**Estimation of priority**: high
