Use tar to preserve links

[julek-wolfssl]

Something broke in the actions/download-artifact action and it is not preserving symbolic links. It didn't get a new release so my guess is that something was updated in the node environment or in npm. This is a future proof solution to preserve the fs structure between upload and download.

[bandi13]

retest this please. The issue was just

# openssl s_client -connect localhost:55758 -reconnect -legacy_renegotiation -cipher DHE-RSA-AES128-SHA256 -tls1_2  -cert "/tmp/workspace/PRB-generic-config-parser/wolfssl/./scripts/../certs/client-cert.pem" -key "/tmp/workspace/PRB-generic-config-parser/wolfssl/./scripts/../certs/client-key.pem" -CAfile "/tmp/workspace/PRB-generic-config-parser/wolfssl/./scripts/../certs/ca-cert.pem"
SSL_accept error -501, can't match cipher suite
wolfSSL error: SSL_accept failed