fix(credential-providers): exclude node.js files for web (#3006)

* fix(credential-providers): side-effect free as it contains node and browser  modules

* fix(credential-providers): side-effect free as it contains node and browser  modules

* fix(credential-providers): use different entrypoint for web runtimes

Author: AllanZhengYP

packages/credential-providers/package.json

@@ -4,20 +4,8 @@
   "description": "A collection of credential providers, without requiring service clients like STS, Cognito",
   "main": "./dist-cjs/index.js",
   "module": "./dist-es/index.js",
-  "browser": {
-    "@aws-sdk/credential-provider-env": false,
-    "@aws-sdk/credential-provider-imds": false,
-    "./fromIni": false,
-    "@aws-sdk/credential-provider-process": false,
-    "./fromTokenFile": false
-  },
-  "react-native": {
-    "@aws-sdk/credential-provider-env": false,
-    "@aws-sdk/credential-provider-imds": false,
-    "./fromIni": false,
-    "@aws-sdk/credential-provider-process": false,
-    "./fromTokenFile": false
-  },
+  "browser": "./dist-es/index.web.js",
+  "react-native": "./dist-es/index.web.js",
   "sideEffects": false,
   "scripts": {
     "build": "yarn build:cjs && yarn build:es && yarn build:types",

packages/credential-providers/src/index.web.ts

@@ -0,0 +1,4 @@
+export * from "./fromCognitoIdentity";
+export * from "./fromCognitoIdentityPool";
+export * from "./fromTemporaryCredentials";
+export * from "./fromWebToken";