perf: switch to empathic find package traversal (#1053)

* perf: switch to `empathic` find package traversal

Uses `empathic/find` for finding the closest `package.json`, a much
faster and smaller library than the various over-specialised
alternatives lying around.

* chore: bump empathic

Author: 43081j

package.json

@@ -10,7 +10,7 @@
     "node": "^18.20.0 || ^20.10.0 || >=22.0.0"
   },
   "dependencies": {
-    "find-up": "^5.0.0"
+    "empathic": "^2.0.1"
   },
   "peerDependencies": {
     "@babel/core": "^7.12.0 || ^8.0.0-beta.1",

src/cache.js

@@ -13,7 +13,7 @@ const path = require("path");
 const zlib = require("zlib");
 const { promisify } = require("util");
 const { readFile, writeFile, mkdir } = require("fs/promises");
-const { sync: findUpSync } = require("find-up");
+const { up: findUpSync } = require("empathic/find");
 const { env } = process;
 const transform = require("./transform");
 const serialize = require("./serialize");

yarn.lock

@@ -2042,10 +2042,10 @@ __metadata:
     "@babel/preset-env": ^8.0.0-beta.1
     "@rspack/core": ^1.7.5
     c8: ^10.1.2
+    empathic: ^2.0.1
     eslint: ^9.6.0
     eslint-config-prettier: ^9.1.0
     eslint-plugin-prettier: ^5.1.3
-    find-up: ^5.0.0
     globals: ^15.8.0
     husky: ^9.1.5
     lint-staged: ^15.2.9
@@ -2461,6 +2461,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"empathic@npm:^2.0.1":
+  version: 2.0.1
+  resolution: "empathic@npm:2.0.1"
+  checksum: c5a37b78926e722c38779e5026342350098771fa1cacb52cb808e5329896ab39abb88cd2f1374671d6e5c98aa24cba2534f00da2938d04f11de1a2d012ee75c3
+  languageName: node
+  linkType: hard
+
 "encoding@npm:^0.1.13":
   version: 0.1.13
   resolution: "encoding@npm:0.1.13"