Add v6 SKESK #3815

Job	Run time
cmake-offline-googletest-src	4m 21s
ubuntu-latest [CC gcc; botan; shared libs on; GnuPG stable]	4m 22s
ubuntu-latest [CC clang; botan; shared libs on; GnuPG stable]	4m 7s
ubuntu-latest [CC gcc; openssl; shared libs on; GnuPG stable]	4m 18s
ubuntu-latest [CC clang; openssl; shared libs on; GnuPG stable]	4m 7s
ubuntu-20.04 [CC gcc; openssl; shared libs on; GnuPG stable]	3m 53s
ubuntu-latest [CC gcc; botan; shared libs off; GnuPG stable]	4m 51s
cmake-offline-googletest	4m 10s
system-sexpp, sexpp shared libs on, rnp shared libs on	2m 57s
system-sexpp, sexpp shared libs on, rnp shared libs off	3m 21s
package-source	30s
system-sexpp, sexpp shared libs off, rnp shared libs on	2m 50s
system-sexpp, sexpp shared libs off, rnp shared libs off	2m 55s
package	53s
debian-tests	16s
	47m 51s

Provide feedback