fix(deps): update dependency execa to v4 (#99)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -48,7 +48,7 @@
     "chalk": "^2.4.1",
     "delay": "^4.3.0",
     "eslint": "^6.7.2",
-    "execa": "^3.4.0",
+    "execa": "^4.0.0",
     "got": "^9.6.0",
     "inquirer": "^7.0.0",
     "js-yaml": "^3.13.1",

yarn.lock

@@ -2229,7 +2229,7 @@ execa@^1.0.0:
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
-execa@^3.2.0, execa@^3.4.0:
+execa@^3.2.0:
   version "3.4.0"
   resolved "https://registry.yarnpkg.com/execa/-/execa-3.4.0.tgz#c08ed4550ef65d858fac269ffc8572446f37eb89"
   integrity sha512-r9vdGQk4bmCuK1yKQu1KTwcT2zwfWdbdaXfCtAh+5nU/4fSX+JAb7vZGvI5naJrQlvONrEB20jeruESI69530g==
@@ -2245,6 +2245,21 @@ execa@^3.2.0, execa@^3.4.0:
     signal-exit "^3.0.2"
     strip-final-newline "^2.0.0"
 
+execa@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-4.0.0.tgz#7f37d6ec17f09e6b8fc53288611695b6d12b9daf"
+  integrity sha512-JbDUxwV3BoT5ZVXQrSVbAiaXhXUkIwvbhPIwZ0N13kX+5yCzOhUNdocxB/UQRuYOHRYYwAxKYwJYc0T4D12pDA==
+  dependencies:
+    cross-spawn "^7.0.0"
+    get-stream "^5.0.0"
+    human-signals "^1.1.1"
+    is-stream "^2.0.0"
+    merge-stream "^2.0.0"
+    npm-run-path "^4.0.0"
+    onetime "^5.1.0"
+    signal-exit "^3.0.2"
+    strip-final-newline "^2.0.0"
+
 expand-brackets@^2.1.4:
   version "2.1.4"
   resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-2.1.4.tgz#b77735e315ce30f6b6eff0f83b04151a22449622"