Regression in Go SDK performance degradation

[jrschumacher]

@imdominicreed reported

hey i just wanted to let someone know that there has been a huge performance regression on bulk rewrap in the sdk. sdk/v0.3.26 gives me ~300-400 decrypts per second. but sdk/v0.3.29 gives me ~8 decrypts per second.

Regression identified here: https://github.com/opentdf/platform/blob/main/sdk/tdf_config.go#L275

Ref: #1870

[jakedoublev]

Resolved by #2016