Fix the broken SSL tests with MariaDB 10.5.18.
    
    This commit fixes the broken SSL tests below.
    
    The rubygem-mysql2 build started to fail with the error below by the `mysql`
    that can't connect to the MariaDB server, when a dependency mariadb was upgraded
    from the version 3:10.5.16-3.fc37 to 3:10.5.18-1.fc38.
    https://koschei.fedoraproject.org/build/14086115
    
    build.log
    ~~~
    + /usr/libexec/mysqld --datadir=/builddir/build/BUILD/mysql2-0.5.4/usr/share/gems/gems/mysql2-0.5.4/data --log-error=/builddir/build/BUILD/mysql2-0.5.4/usr/share/gems/gems/mysql2-0.5.4/mysql.log --socket=/builddir/build/BUILD/mysql2-0.5.4/usr/share/gems/gems/mysql2-0.5.4/mysql.sock --pid-file=/builddir/build/BUILD/mysql2-0.5.4/usr/share/gems/gems/mysql2-0.5.4/mysql.pid --port=13471 --ssl
    ++ seq 10
    + for i in $(seq 10)
    + sleep 1
    2022-11-17 11:20:48 0 [Note] /usr/libexec/mysqld (mysqld 10.5.18-MariaDB) starting as process 1297 ...
    + grep -q 'ready for connections.' /builddir/build/BUILD/mysql2-0.5.4/usr/share/gems/gems/mysql2-0.5.4/mysql.log
    + echo 'Waiting connections... 1'
    ...
    + echo 'Waiting connections... 10'
    Waiting connections... 10
    + mysql -u mockbuild -e 'ALTER USER '\''root'\''@'\''localhost'\'' IDENTIFIED VIA mysql_native_password USING PASSWORD('\'''\'')' -S /builddir/build/BUILD/mysql2-0.5.4/usr/share/gems/gems/mysql2-0.5.4/mysql.sock -P 13471
    ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/builddir/build/BUILD/mysql2-0.5.4/usr/share/gems/gems/mysql2-0.' (2)
    ~~~
    
    After Michal Schorm <mschorm@redhat.com>'s investigation (thanks!), we found
    the error comes from the not appropriate SSL configurations.
    
    It was reported that in Fedora, the MariaDB 10.5.16 used downstream OpenSSL 3
    patch, and the MariaDB 10.5.18 started to use upstream OpenSSL 3 patch.
    And there are some differences between these two patch files. And the difference
    triggered this issue.
    
    See also <https://github.com/brianmario/mysql2/pull/1290>.
    
    I also applied a patch to use the SSL pem files in the spec directory directly
    to run the SSL tests. Because we can't set up the files in the `/etc/mysql`.
    
    See also <https://github.com/brianmario/mysql2/pull/1293>.
    
    Resolves: rhbz#2144488