KeycloakConfig retrieval should use the sslContext

[diegolovison]

Changes proposed

All http requests should use the sslContext configured

Check List (Check all the applicable boxes)

• My code follows the code style of this project.
• My change requires changes to the documentation.
• I have updated the documentation accordingly.
• All new and existing tests passed.

[lampajr]

Hi @diegolovison, thanks for the fix.

Overall looks good but can you please add a test that ensure the behavior would be the expected one, if possible? For instance here https://github.com/Hyperfoil/Horreum/blob/d437b3652b8414ab6b5bab878772a0e110df0279/horreum-integration-tests/src/test/java/io/hyperfoil/tools/horreum/it/HorreumClientIT.java where we have all the tests using the HorreumClient

[diegolovison]

Let me think about the test.