chore: bump version to 0.7.3

Refs the MIT licensing change (also aligns the lockfile's cached license
field with package.json, which was still UNLICENSED).

package-lock.json

@@ -1,13 +1,13 @@
 {
   "name": "aerofetch",
-  "version": "0.7.2",
+  "version": "0.7.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "aerofetch",
-      "version": "0.7.2",
+      "version": "0.7.3",
-      "license": "UNLICENSED",
+      "license": "MIT",
       "dependencies": {
         "@electron-toolkit/utils": "^4.0.0",
         "@fluentui/react-components": "^9.74.1",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "aerofetch",
-  "version": "0.7.2",
+  "version": "0.7.3",
   "description": "A yt-dlp frontend for Windows",
   "main": "./out/main/index.js",
   "author": "AeroFetch",