Drop Node 18 support and update eslint-plugin-jsdoc to 51.x (#105)

Co-authored-by: anmolshres98 <[email protected]>

Author: anmolshres98

change/@itwin-eslint-plugin-57637519-35cd-4ce0-ab49-3708a0b3fa78.json

@@ -0,0 +1,7 @@
+{
+  "type": "major",
+  "comment": "Drop node 18 support and update `eslint-plugin-jsdoc` to 51.x",
+  "packageName": "@itwin/eslint-plugin",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}

package.json

@@ -40,7 +40,7 @@
     "eslint-formatter-visualstudio": "^8.40.0",
     "eslint-plugin-import": "^2.31.0",
     "eslint-plugin-jam3": "^0.2.3",
-    "eslint-plugin-jsdoc": "^50.6.6",
+    "eslint-plugin-jsdoc": "^51.2.1",
     "eslint-plugin-jsx-a11y": "^6.10.2",
     "eslint-plugin-prefer-arrow": "^1.2.3",
     "eslint-plugin-react": "^7.37.4",
@@ -61,7 +61,7 @@
     "typescript": "~5.6.3"
   },
   "engines": {
-    "node": "^18.18.0 || ^20.0.0 || ^22.0.0"
+    "node": "^20.11.0 || ^22.0.0"
   },
   "packageManager": "[email protected]+sha512.d615db246fe70f25dcfea6d8d73dee782ce23e2245e3c4f6f888249fb568149318637dca73c2c5c8ef2a4ca0d5657fb9567188bfab47f566d1ee6ce987815c39"
 }