refactor: ➖ remove chalk as dependency

fixes: #43

index.js

@@ -1,5 +1,11 @@
 const util = require('util')
-const chalk = require('chalk')
+
+const chalk = {
+  red: (str) => `\u001b[31m${str}`,
+  gray: (str) => `\u001b[90m${str}`,
+  white: (str) => `\u001b[37m${str}`,
+  bold: (str) => `\u001b[1m${str}`
+};
 
 const defaultErrorMessage = (methodName, bold) =>
   `Expected test not to call ${bold(`console.${methodName}()`)}.\n\n` +

package.json

@@ -19,9 +19,6 @@
     "test": "jest tests/index.test.js",
     "type-check": "tsc --noEmit index.d.ts"
   },
-  "dependencies": {
-    "chalk": "^4.1.0"
-  },
   "devDependencies": {
     "jest": "^27.5.1",
     "np": "^7.2.0",

yarn.lock

@@ -1635,9 +1635,9 @@ fs.realpath@^1.0.0:
   integrity sha1-FQStJSMVjKpA20onh8sBQRmU6k8=
 
 fsevents@^2.3.2:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.3.2.tgz#8a526f78b8fdf4623b709e0b975c52c24c02fd1a"
-  integrity sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.3.3.tgz#cac6407785d03675a2a5e1a5305c697b347d90d6"
+  integrity sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==
 
 function-bind@^1.1.1:
   version "1.1.1"
@@ -2613,7 +2613,7 @@ jest-worker@^27.5.1:
 
 jest@^27.5.1:
   version "27.5.1"
-  resolved "https://registry.yarnpkg.com/jest/-/jest-27.5.1.tgz#dadf33ba70a779be7a6fc33015843b51494f63fc"
+  resolved "https://registry.npmjs.org/jest/-/jest-27.5.1.tgz"
   integrity sha512-Yn0mADZB89zTtjkPJEXwrac3LHudkQMR+Paqa8uxJHCBr9agxztUifWCyiYrjhMPBoUVBjyny0I7XH6ozDr7QQ==
   dependencies:
     "@jest/core" "^27.5.1"
@@ -4048,7 +4048,7 @@ typedarray-to-buffer@^3.1.5:
 
 typescript@^4.8.2:
   version "4.8.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.8.2.tgz#e3b33d5ccfb5914e4eeab6699cf208adee3fd790"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-4.8.2.tgz"
   integrity sha512-C0I1UsrrDHo2fYI5oaCGbSejwX4ch+9Y5jTQELvovfmFkK3HHSZJB8MSJcWLmCUBzQBchCrZ9rMRV6GuNrvGtw==
 
 unique-string@^2.0.0: