fix(core): update

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@pushrocks/smartpdf',
-  version: '3.0.10',
+  version: '3.0.11',
   description: 'create pdfs on the fly'
 }

ts/smartpdf.classes.smartpdf.ts

@@ -186,7 +186,7 @@ export class SmartPdf {
   public async mergePdfs(pdfArrayArg: plugins.tsclass.business.IPdf[]): Promise<IPdf> {
     const merger = new plugins.pdfMerger();
     for (const pdf of pdfArrayArg) {
-      merger.add(pdf.buffer as Buffer);
+      merger.add(Buffer.from(pdf.buffer));
     }
     const resultBuffer = await merger.saveAsBuffer();
     return {