chore: Update typescript

.travis.yml

@@ -1,8 +1,8 @@
 language: node_js
 node_js:
-  - "8"
   - "10"
   - "12"
+  - "14"
 
 jobs:
   include:

package.json

@@ -32,14 +32,14 @@
     "test": "test"
   },
   "devDependencies": {
-    "@types/jest": "^25.1.4",
+    "@types/jest": "^26.0.14",
     "@types/node": "^13.9.5",
-    "jest": "^25.2.4",
+    "jest": "^26.4.2",
     "prettier": "^2.0.2",
     "semantic-release": "^15.14.0",
-    "ts-jest": "^25.2.1",
+    "ts-jest": "^26.4.0",
     "tslint": "^6.1.0",
-    "typescript": "^3.8.3"
+    "typescript": "^4.0.3"
   },
   "keywords": [
     "encoding",

tsconfig.json

@@ -14,7 +14,7 @@
     "removeComments": true,
     "sourceMap": true,
     "strict": true,
-    "target": "esnext"
+    "target": "ES2020"
   },
-  "exclude": ["node_modules", "**/*.spec.ts", "**/*.test.ts", "__mocks__"]
+  "exclude": ["node_modules", "**/*.spec.ts", "**/*.test.ts", "__mocks__", "lib"]
 }