remove confidential passphrase param

Author: prafull-opensignlabs

apps/OpenSignServer/cloud/parsefunction/pdf/SignPDF.min.cjs

@@ -1 +1 @@
-const signer=require("node-signpdf").default;class SignPDF{constructor(e,t){this.pdfDoc=e,this.certificate=t}async signPDF(){return signer.sign(this.pdfDoc,this.certificate,{passphrase:"emudhra"})}static unit8ToBuffer(e){var t=Buffer.alloc(e.byteLength),r=new Uint8Array(e);for(let e=0;e<t.length;++e)t[e]=r[e];return t}}module.exports=SignPDF;
+const signer=require("node-signpdf").default;class SignPDF{constructor(e,t){this.pdfDoc=e,this.certificate=t}async signPDF(){return signer.sign(this.pdfDoc,this.certificate, process.env.PASS_PHRASE ? {passphrase : process.env.PASS_PHRASE}:  null)}static unit8ToBuffer(e){var t=Buffer.alloc(e.byteLength),r=new Uint8Array(e);for(let e=0;e<t.length;++e)t[e]=r[e];return t}}module.exports=SignPDF;