Tenant Security Proxy v3.3.7 Released

[skeet70]

Note: all v3 TSPs are currently EOL. This is a courtesy release for anyone that hasn't upgraded to v4+ TSP and is affected by this bug.

This fixes a bug in the TSP that inconsistently resulted in EDEKs being encrypted with non-primary leased keys. It also adds code that works around EDEKs that are the result of that bug, and warns about them.

The changelog entry is here.