refactor(action): rebuild in TypeScript based on typescript-action template repo (#9)

tsconfig.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "extends": "./tsconfig.base.json",
+  "compilerOptions": {
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "outDir": "./dist"
+  },
+  "exclude": ["__fixtures__", "__tests__", "coverage", "dist", "node_modules"],
+  "include": ["src"]
+}