BOD 18-01 Compliance Discrepancies

# 🐛 Summary #

The automated PSHTT scanner used for BOD web compliance checks is showing a few domains as having "hsts" = "false" and "hsts_max_age" = -1, when they otherwise appear to have HSTS header with a valid age. While the automated checks used for the HTTPS report shows non-compliance, using the PSHTT scanner locally returns expected HSTS results for the same domain and shows compliance.

## To reproduce ##

Steps to reproduce the behavior:

1. Determine domain not returning expected HSTS results from the weekly results
2. Review results for said domain within the HTTPS report and note non-compliance with HSTS checks
3. Run PSHTT scans using Docker, "cisagov/domain-scan:latest --scan=pshtt"
4. Note compliant HSTS headers on Docker scan vs. non-compliant HSTS headers on automated scan

## Expected behavior ##

BOD reports to match what is detected via the manual "pshtt" checks.