chore: upgrade to ts-eslint v7 (#334)

BREAKING CHANGE: Update @typescript-eslint to v7 or above, and eslint to 8.56.0 or above

Author: iamturns

README.md

@@ -14,17 +14,8 @@ Make sure you have the regular Airbnb config setup. If you are using React, use
 
 ```bash
 npm install eslint-config-airbnb-typescript \
-            @typescript-eslint/eslint-plugin@^6.0.0 \
-            @typescript-eslint/parser@^6.0.0 \
-            --save-dev
-```
-
-or
-
-```bash
-npm install eslint-config-airbnb-typescript \
-            @typescript-eslint/eslint-plugin@^5.13.0 \
-            @typescript-eslint/parser@^5.0.0 \
+            @typescript-eslint/eslint-plugin@^7.0.0 \
+            @typescript-eslint/parser@^7.0.0 \
             --save-dev
 ```