Fix TestGetRsaKey running with openssl 1.1

[cbosdo]

What does this PR change?

openssl 1.1 generates PKCS#1 (wrapped in RSA PRIVATE KEY block) while the test was expecting the behavior of more recent openssl generating PKCS#8 (wrapped in PRIVATE KEY block).

Handle both in the unit test.

Codespace

Check if you already have a running container clicking on

Test coverage

• Unit tests were changed

• DONE

Links

Issue(s): https://github.com/SUSE/spacewalk/issues/24832 https://github.com/SUSE/spacewalk/issues/24842

• DONE

Changelogs

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Before you merge

Check How to branch and merge properly!

[deneb-alpha]

go test -v github.com/uyuni-project/uyuni-tools/shared/ssl -run TestGetRsaKey

=== RUN   TestGetRsaKey
--- PASS: TestGetRsaKey (0.00s)
PASS
ok      github.com/uyuni-project/uyuni-tools/shared/ssl 0.007s

Thanks!