Bump artifact dependencies if CODEQL_ACTION_ARTIFACT_V2_UPGRADE enabled (#2482)

Co-authored-by: Andrew Eisenberg <aeisenberg@github.com>
Co-authored-by: Henry Mercer <henrymercer@github.com>

node_modules/text-decoder/index.js

@@ -0,0 +1,64 @@
+const PassThroughDecoder = require('./lib/pass-through-decoder')
+const UTF8Decoder = require('./lib/utf8-decoder')
+
+module.exports = class TextDecoder {
+  constructor (encoding = 'utf8') {
+    this.encoding = normalizeEncoding(encoding)
+
+    switch (this.encoding) {
+      case 'utf8':
+        this.decoder = new UTF8Decoder()
+        break
+      case 'utf16le':
+      case 'base64':
+        throw new Error('Unsupported encoding: ' + this.encoding)
+      default:
+        this.decoder = new PassThroughDecoder(this.encoding)
+    }
+  }
+
+  get remaining () {
+    return this.decoder.remaining
+  }
+
+  push (data) {
+    if (typeof data === 'string') return data
+    return this.decoder.decode(data)
+  }
+
+  // For Node.js compatibility
+  write (data) {
+    return this.push(data)
+  }
+
+  end (data) {
+    let result = ''
+    if (data) result = this.push(data)
+    result += this.decoder.flush()
+    return result
+  }
+}
+
+function normalizeEncoding (encoding) {
+  encoding = encoding.toLowerCase()
+
+  switch (encoding) {
+    case 'utf8':
+    case 'utf-8':
+      return 'utf8'
+    case 'ucs2':
+    case 'ucs-2':
+    case 'utf16le':
+    case 'utf-16le':
+      return 'utf16le'
+    case 'latin1':
+    case 'binary':
+      return 'latin1'
+    case 'base64':
+    case 'ascii':
+    case 'hex':
+      return encoding
+    default:
+      throw new Error('Unknown encoding: ' + encoding)
+  }
+};