libnetconf2 CI

server config BUGFIX set ssh encrypt alg correctly #455

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Job	Run time
Get git branch	1s
Release, gcc, OpenSSL	1m 43s
Release, gcc, MbedTLS	2m 10s
Release, clang	1m 45s
Debug, gcc, OpenSSL	3m 8s
Debug, gcc, MbedTLS	3m 51s
Debug, clang	1m 39s
No SSH nor TLS	1m 14s
ASAN and UBSAN, OpenSSL	1m 46s
ASAN and UBSAN, MbedTLS	2m 17s
ABI Check	1m 50s
DEB Package	3m 25s
	24m 49s