chore: move types to dist/types

Refs: aws#2175

Author: trivikr

packages/credential-provider-assume-role/package.json

@@ -10,7 +10,7 @@
     "build:cjs": "tsc -p tsconfig.cjs.json",
     "build:es": "tsc -p tsconfig.es.json",
     "build": "yarn build:es && yarn build:cjs",
-    "postbuild": "downlevel-dts types types/ts3.4",
+    "postbuild": "downlevel-dts dist/types dist/types/ts3.4",
     "test": "jest"
   },
   "keywords": [
@@ -36,7 +36,7 @@
     "jest": "^26.1.0",
     "typescript": "~4.1.2"
   },
-  "types": "./types/index.d.ts",
+  "types": "./dist/types/index.d.ts",
   "engines": {
     "node": ">= 10.0.0"
   },

packages/credential-provider-assume-role/tsconfig.cjs.json

@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
-    "declarationDir": "./types",
+    "declarationDir": "./dist/types",
     "rootDir": "./src",
     "outDir": "./dist/cjs",
     "baseUrl": "."

packages/credential-provider-assume-role/tsconfig.es.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "lib": ["es5", "es2015.promise", "es2015.collection"],
-    "declarationDir": "./types",
+    "declarationDir": "./dist/types",
     "rootDir": "./src",
     "outDir": "./dist/es",
     "baseUrl": "."