Coverity workflow refactoring #3211

Job	Run time
cmake-offline-googletest-src	8m 11s
ubuntu-latest [CC gcc; botan; shared libs on; GnuPG stable]	7m 45s
ubuntu-latest [CC clang; botan; shared libs on; GnuPG stable]	7m 10s
ubuntu-latest [CC gcc; openssl; shared libs on; GnuPG stable]	8m 51s
ubuntu-latest [CC clang; openssl; shared libs on; GnuPG stable]	7m 1s
ubuntu-20.04 [CC gcc; openssl; shared libs on; GnuPG stable]	6m 39s
cmake-offline-googletest	7m 36s
ubuntu-latest [CC gcc; botan; shared libs off; GnuPG stable]	7m 40s
system-sexpp, sexpp shared libs on, rnp shared libs on	5m 2s
system-sexpp, sexpp shared libs on, rnp shared libs off	6m 37s
system-sexpp, sexpp shared libs off, rnp shared libs on	4m 42s
system-sexpp, sexpp shared libs off, rnp shared libs off	6m 51s
package-source	40s
package	1m 20s
debian-tests	12s
	1h 26m 17s

Provide feedback