fix(deps): update octokit monorepo (major) (#1152)

* ci: stop testing against NodeJS v18 (#1149)

BREAKING CHANGE: Drop support for NodeJS v18
---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: wolfy1339 <4595477+wolfy1339@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/test.yml

@@ -27,7 +27,6 @@ jobs:
     strategy:
       matrix:
         node_version:
-          - 18
           - 20
           - 22
           - 24

package-lock.json

@@ -48,8 +48,8 @@
   },
   "dependencies": {
     "@octokit/openapi-webhooks-types": "11.0.0",
-    "@octokit/request-error": "^6.1.7",
-    "@octokit/webhooks-methods": "^5.1.1"
+    "@octokit/request-error": "^7.0.0",
+    "@octokit/webhooks-methods": "^6.0.0"
   },
   "devDependencies": {
     "@octokit/openapi-webhooks": "11.0.0",
@@ -67,7 +67,7 @@
     "vitest": "^3.0.0"
   },
   "engines": {
-    "node": ">= 18"
+    "node": ">= 20"
   },
   "publishConfig": {
     "access": "public",