chore: bump undici to ^7.16.0

- @actions/http-client: ^5.28.5 → ^7.16.0
- @actions/github: ^5.28.5 → ^7.16.0
- @actions/attest: ^6.20.0 → ^7.16.0

Note: undici v7 requires Node.js 20+

packages/attest/package-lock.json

@@ -22,7 +22,7 @@
         "@sigstore/rekor-types": "^3.0.0",
         "@types/jsonwebtoken": "^9.0.6",
         "nock": "^13.5.1",
-        "undici": "^6.20.0"
+        "undici": "^7.16.0"
       }
     },
     "node_modules/@actions/core": {
@@ -1625,13 +1625,13 @@
       }
     },
     "node_modules/undici": {
-      "version": "6.21.3",
-      "resolved": "https://registry.npmjs.org/undici/-/undici-6.21.3.tgz",
-      "integrity": "sha512-gBLkYIlEnSp8pFbT64yFgGE6UIB9tAkhukC23PmMDCe5Nd+cRqKxSjw5y54MK2AZMgZfJWMaNE4nYUHgi1XEOw==",
+      "version": "7.16.0",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-7.16.0.tgz",
+      "integrity": "sha512-QEg3HPMll0o3t2ourKwOeUAZ159Kn9mx5pnzHRQO8+Wixmh88YdZRiIwat0iNzNNXn0yoEtXJqFpyW7eM8BV7g==",
       "dev": true,
       "license": "MIT",
       "engines": {
-        "node": ">=18.17"
+        "node": ">=20.18.1"
       }
     },
     "node_modules/undici-types": {

packages/attest/package.json

@@ -39,7 +39,7 @@
     "@sigstore/rekor-types": "^3.0.0",
     "@types/jsonwebtoken": "^9.0.6",
     "nock": "^13.5.1",
-    "undici": "^6.20.0"
+    "undici": "^7.16.0"
   },
   "dependencies": {
     "@actions/core": "^1.11.1",