Use published deepmerge fork for npm 12 compatibility

package-lock.json

@@ -3440,9 +3440,10 @@
       "license": "MIT"
     },
     "node_modules/deepmerge": {
-      "version": "4.3.2+shivammathur.1",
-      "resolved": "https://codeload.github.com/shivammathur/deepmerge/tar.gz/9e04a97afa90b9d50883dd723f7d0fb0d2c16dca",
-      "integrity": "sha512-r4fnznwnkXKmMFSYuH/DNADs6s2cTFDFE/vXfV4ocEnG4IZ20vDTXrPNRqisYZbNwvno2m0eBUtVrdVX6kbbeg==",
+      "name": "@shivammathur/deepmerge",
+      "version": "4.3.2",
+      "resolved": "https://registry.npmjs.org/@shivammathur/deepmerge/-/deepmerge-4.3.2.tgz",
+      "integrity": "sha512-OBZnBsXwbBITC90wXf9Ph8W7OAUkhFdM+BGRYeIQwt5nILxy5wkk2plUoabi9Yp6xm0c/Yv9PuLiGBXnfizAMA==",
       "dev": true,
       "license": "MIT",
       "engines": {

package.json

@@ -65,7 +65,7 @@
   },
   "overrides": {
     "@babel/core": "^7.29.7",
-    "deepmerge": "https://codeload.github.com/shivammathur/deepmerge/tar.gz/9e04a97afa90b9d50883dd723f7d0fb0d2c16dca",
+    "deepmerge": "npm:@shivammathur/deepmerge@4.3.2",
     "js-yaml": "^4.2.0",
     "test-exclude": "^7.0.1",
     "glob": "^14.0.3",