@wdio/mocha-framework - fix deprecation warning

[unickq]

Proposed changes

Update for #7040 and #7047

[christian-bromann]

@unickq can you fix the types here: https://github.com/webdriverio/webdriverio/blob/main/packages/wdio-mocha-framework/src/types.ts#L5-L9

    /**
     * The `require` option is useful when you want to add or extend some
     * basic functionality (WebdriverIO framework option).
     */
+    require?: string[],
-    require?: string | string[],