Bump xmldom and plist

Removes [xmldom](https://github.com/xmldom/xmldom). It's no longer used after updating ancestor dependency [plist](https://github.com/TooTallNate/node-plist). These dependencies need to be updated together.


Removes `xmldom`

Updates `plist` from 3.0.1 to 3.0.6
- [Release notes](https://github.com/TooTallNate/node-plist/releases)
- [Changelog](https://github.com/TooTallNate/plist.js/blob/master/History.md)
- [Commits](https://github.com/TooTallNate/node-plist/commits)

---
updated-dependencies:
- dependency-name: xmldom
  dependency-type: indirect
- dependency-name: plist
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "SpeedyLoader",
-  "version": "1.5.0",
+  "version": "1.5.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2428,14 +2428,21 @@
       "optional": true
     },
     "plist": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/plist/-/plist-3.0.1.tgz",
-      "integrity": "sha512-GpgvHHocGRyQm74b6FWEZZVRroHKE1I0/BTjAmySaohK+cUn+hZpbqXkc3KWgW3gQYkqcQej35FohcT0FRlkRQ==",
+      "version": "3.0.6",
+      "resolved": "https://registry.npmjs.org/plist/-/plist-3.0.6.tgz",
+      "integrity": "sha512-WiIVYyrp8TD4w8yCvyeIr+lkmrGRd5u0VbRnU+tP/aRLxP/YadJUYOMZJ/6hIa3oUyVCsycXvtNRgd5XBJIbiA==",
       "dev": true,
       "requires": {
-        "base64-js": "^1.2.3",
-        "xmlbuilder": "^9.0.7",
-        "xmldom": "0.1.x"
+        "base64-js": "^1.5.1",
+        "xmlbuilder": "^15.1.1"
+      },
+      "dependencies": {
+        "xmlbuilder": {
+          "version": "15.1.1",
+          "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-15.1.1.tgz",
+          "integrity": "sha512-yMqGBqtXyeN1e3TGYvgNgDVZ3j84W4cwkOXQswghol6APgZWaff9lnbvN7MHYJOiXsvGPXtjTYJEiC9J2wv9Eg==",
+          "dev": true
+        }
       }
     },
     "prebuild-install": {
@@ -3287,18 +3294,6 @@
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
-    "xmlbuilder": {
-      "version": "9.0.7",
-      "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-9.0.7.tgz",
-      "integrity": "sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0=",
-      "dev": true
-    },
-    "xmldom": {
-      "version": "0.1.31",
-      "resolved": "https://registry.npmjs.org/xmldom/-/xmldom-0.1.31.tgz",
-      "integrity": "sha512-yS2uJflVQs6n+CyjHoaBmVSqIDevTAWrzMmjG1Gc7h1qQ7uVozNhEPJAwZXWyGQ/Gafo3fCwrcaokezLPupVyQ==",
-      "dev": true
-    },
     "y18n": {
       "version": "5.0.5",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.5.tgz",