fix: prevent DEFAULT_ALGORITHM mutation

Author: wraithgar

lib/index.js

@@ -34,7 +34,7 @@ class IntegrityStream extends MiniPass {
         new Set(opts.algorithms.concat(this.algorithm ? [this.algorithm] : []))
       )
     } else {
-      this.algorithms = DEFAULT_ALGORITHMS
+      this.algorithms = [...DEFAULT_ALGORITHMS]
 
       if (this.algorithm !== null && this.algorithm !== DEFAULT_ALGORITHMS[0]) {
         this.algorithms.push(this.algorithm)
@@ -416,7 +416,7 @@ function fromHex (hexDigest, algorithm, opts) {
 
 module.exports.fromData = fromData
 function fromData (data, opts) {
-  const algorithms = opts?.algorithms || DEFAULT_ALGORITHMS
+  const algorithms = opts?.algorithms || [...DEFAULT_ALGORITHMS]
   const optString = getOptString(opts?.options)
   return algorithms.reduce((acc, algo) => {
     const digest = crypto.createHash(algo).update(data).digest('base64')
@@ -528,7 +528,7 @@ function integrityStream (opts = Object.create(null)) {
 
 module.exports.create = createIntegrity
 function createIntegrity (opts) {
-  const algorithms = opts?.algorithms || DEFAULT_ALGORITHMS
+  const algorithms = opts?.algorithms || [...DEFAULT_ALGORITHMS]
   const optString = getOptString(opts?.options)
 
   const hashes = algorithms.map(crypto.createHash)