public SELF withInitCommand(String... commands) {
        initCommands.addAll(Arrays.asList(commands));
        return self();
    }
Run initialization commands using the vault cli.
<p>
Useful for enabling more secret engines like:
<pre>
    .withInitCommand("secrets enable pki")
    .withInitCommand("secrets enable transit")
</pre>
@param commands The commands to send to the vault cli
@return this
modules/vault/src/main/java/org/testcontainers/vault/VaultContainer.java