Bump execa from 4.1.0 to 5.0.0

Bumps [execa](https://github.com/sindresorhus/execa) from 4.1.0 to 5.0.0.
- [Release notes](https://github.com/sindresorhus/execa/releases)
- [Commits](sindresorhus/execa@v4.1.0...v5.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package.json

@@ -39,7 +39,7 @@
     "eslint-config-prettier": "^6.15.0",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-prettier": "^3.4.0",
-    "execa": "^4.0.3",
+    "execa": "^5.0.0",
     "prettier": "^2.2.1",
     "qunit": "^2.14.0",
     "release-it": "^14.6.1",

yarn.lock

@@ -2897,7 +2897,7 @@ execa@4.0.3:
     signal-exit "^3.0.2"
     strip-final-newline "^2.0.0"
 
-execa@5.0.0:
+execa@5.0.0, execa@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/execa/-/execa-5.0.0.tgz#4029b0007998a841fbd1032e5f4de86a3c1e3376"
   integrity sha512-ov6w/2LCiuyO4RLYGdpFGjkcs0wMTgGE8PrkTHikeUy5iJekXyPIKUjifk5CsE0pt7sMCrMZ3YNqoCj6idQOnQ==