Potential backward comparability issues (NPE) since 1.20 version

[yingkun-bai]

Hello,

Before 1.20.0, we could still get the test container run even we pass a null initScriptPaths in JdbcDatabaseContainer
I found it will break some legacy codes, if the path was null before. Could you confirm it's a bug or a breaking change?

The reason is here, we had a null checking before

    /**
     * Load init script content and apply it to the database if initScriptPath is set
     */
    protected void runInitScriptIfRequired() {
        if (initScriptPath != null) {
            ScriptUtils.runInitScript(getDatabaseDelegate(), initScriptPath);
        }
    }

However, this was lost in the newer versions:
protected void runInitScriptIfRequired() { initScriptPaths.forEach(path -> ScriptUtils.runInitScript(getDatabaseDelegate(), path)); }