Emit type definitions with cjs format

- Currently there is no difference between emitting type definitions with `cjs` or `esm` format, the only difference is the file extension. So we emit the type definitions with a `cjs` format to preserve the previous `.d.ts` extension as opposed to the new `.d.mts` extension.

Author: aryaemami59

Diff for: tsup.config.ts

@@ -36,7 +36,6 @@ export default defineConfig((options): Options[] => {
       name: 'Modern ESM',
       format: ['esm'],
       outExtension: () => ({ js: '.mjs' }),
-      dts: true,
     },
     {
       ...commonOptions,
@@ -71,7 +70,7 @@ export default defineConfig((options): Options[] => {
       },
       platform: 'browser',
       env: {
-        NODE_ENV: 'production'
+        NODE_ENV: 'production',
       },
       format: ['esm'],
       outExtension: () => ({ js: '.mjs' }),
@@ -84,7 +83,7 @@ export default defineConfig((options): Options[] => {
         'react-redux.development': 'src/index.ts',
       },
       env: {
-        NODE_ENV: 'development'
+        NODE_ENV: 'development',
       },
       format: ['cjs'],
       outDir: './dist/cjs/',
@@ -97,7 +96,7 @@ export default defineConfig((options): Options[] => {
         'react-redux.production.min': 'src/index.ts',
       },
       env: {
-        NODE_ENV: 'production'
+        NODE_ENV: 'production',
       },
       format: ['cjs'],
       outDir: './dist/cjs/',
@@ -107,5 +106,11 @@ export default defineConfig((options): Options[] => {
         await writeCommonJSEntry()
       },
     },
+    {
+      ...commonOptions,
+      name: 'CJS Type definitions',
+      format: ['cjs'],
+      dts: { only: true },
+    },
   ]
 })