@actions/tool-cache: convert to an ESM module (#2274)

* `@actions/tool-cache`: convert to an ESM module

* Fix jest config

* Downgrade `nock` since it's conflicting with `@actions/attest`'s version

packages/tool-cache/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@actions/tool-cache",
-  "version": "3.0.1",
+  "version": "4.0.0",
   "description": "Actions tool-cache lib",
   "keywords": [
     "github",
@@ -9,8 +9,15 @@
   ],
   "homepage": "https://github.com/actions/toolkit/tree/main/packages/tool-cache",
   "license": "MIT",
+  "type": "module",
   "main": "lib/tool-cache.js",
   "types": "lib/tool-cache.d.ts",
+  "exports": {
+    ".": {
+      "types": "./lib/tool-cache.d.ts",
+      "import": "./lib/tool-cache.js"
+    }
+  },
   "directories": {
     "lib": "lib",
     "test": "__tests__"
@@ -36,15 +43,14 @@
     "url": "https://github.com/actions/toolkit/issues"
   },
   "dependencies": {
-    "@actions/core": "^2.0.1",
-    "@actions/exec": "^2.0.0",
-    "@actions/http-client": "^3.0.2",
-    "@actions/io": "^2.0.0",
-    "semver": "^6.1.0"
+    "@actions/core": "^3.0.0",
+    "@actions/exec": "^3.0.0",
+    "@actions/http-client": "^4.0.0",
+    "@actions/io": "^3.0.0",
+    "semver": "^7.7.3"
   },
   "devDependencies": {
-    "@types/nock": "^11.1.0",
-    "@types/semver": "^6.0.0",
-    "nock": "^13.2.9"
+    "@types/semver": "^7.7.1",
+    "nock": "^13.5.1"
   }
 }