cipher: do not reuse cipher ctx for certain operations (#146)

Fixes golang-fips/go#187

Co-authored-by: Derek Parker <deparker@redhat.com>

Merge pull request #139 from golang-fips/remove-threadtests

Link against pthread

Merge pull request from GHSA-78hx-gp6g-7mj6

Fix memory leak in setupEVP and newCipherCtx

Add build tag excluding thread_setup.go during bootstrap (#137)

This file utilizes CGO which causes the bootstrap phase of the compiler build to fail.

Merge pull request #105 from golang-fips/md4md5

Support for MD4 and MD5

add version suffix to the module name (#92)

Bump minimum Go version to 1.20 (#91)

* bump minimum Go version to 1.20

* fix compilation

* remove // +build comments