Bump ava from 2.3.0 to 2.4.0

Bumps [ava](https://github.com/avajs/ava) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/avajs/ava/releases)
- [Commits](avajs/ava@v2.3.0...v2.4.0)

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

package.json

@@ -52,7 +52,7 @@
     "@babel/preset-env": "^7.6.0",
     "@typescript-eslint/eslint-plugin": "^2.1.0",
     "@typescript-eslint/parser": "^2.1.0",
-    "ava": "^2.3.0",
+    "ava": "^2.4.0",
     "cpx": "^1.5.0",
     "del-cli": "^3.0.0",
     "eslint": "^6.3.0",

yarn.lock

@@ -50,7 +50,7 @@
   dependencies:
     "@babel/highlight" "^7.0.0"
 
-"@babel/core@^7.5.5", "@babel/core@^7.6.0":
+"@babel/core@^7.6.0":
   version "7.6.0"
   resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.6.0.tgz#9b00f73554edd67bebc86df8303ef678be3d7b48"
   integrity sha512-FuRhDRtsd6IptKpHXAa+4WPZYY2ZzgowkbLBecEDDSje1X/apG7jQM33or3NdOmjXBKWGOg4JmSiRfUfuTtHXw==
@@ -70,7 +70,7 @@
     semver "^5.4.1"
     source-map "^0.5.0"
 
-"@babel/generator@^7.0.0", "@babel/generator@^7.5.5", "@babel/generator@^7.6.0":
+"@babel/generator@^7.0.0", "@babel/generator@^7.6.0":
   version "7.6.0"
   resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.6.0.tgz#e2c21efbfd3293ad819a2359b448f002bfdfda56"
   integrity sha512-Ms8Mo7YBdMMn1BYuNtKuP/z0TgEIhbcyB8HVR6PPNYp4P61lMsABiS4A3VG1qznjXVCf3r+fVHhm4efTYVsySA==
@@ -872,7 +872,7 @@ ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   dependencies:
     color-convert "^1.9.0"
 
-ansi-styles@^4.0.0:
+ansi-styles@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-4.1.0.tgz#d3ba8047b818293eaaa7978321dd61bff9842cfc"
   integrity sha512-Qts4KCLKG+waHc9C4m07weIY8qyeixoS0h6RnbsNVD6Fw+pEZGW3vTyObL3WXpE09Mq4Oi7/lBEyLmOiLtlYWQ==
@@ -1017,18 +1017,18 @@ atob@^2.1.1:
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
   integrity sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==
 
-ava@^2.3.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/ava/-/ava-2.3.0.tgz#cac4d7f0a30077a852c6bf5bc7c0bc78c3021e63"
-  integrity sha512-4VaaSnl13vpTZmqW3aMqioSolT0/ozRkjQxTLi3p8wtyRONuX/uLKL3uF0j50w2BNRoLsJqztnkX2h8xeVp2lg==
+ava@^2.4.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/ava/-/ava-2.4.0.tgz#a3bd8b0e01d8826004c91de375eb2313ba5237c3"
+  integrity sha512-CQWtzZZZeU2g4StojRv6MO9RIRi4sLxGSB9+3C3hv0ttUEG1tkJLTLyrBQeFS4WEeK12Z4ovE3f2iPVhSy8elA==
   dependencies:
     "@ava/babel-preset-stage-4" "^4.0.0"
     "@ava/babel-preset-transform-test-files" "^6.0.0"
-    "@babel/core" "^7.5.5"
-    "@babel/generator" "^7.5.5"
+    "@babel/core" "^7.6.0"
+    "@babel/generator" "^7.6.0"
     "@concordance/react" "^2.0.0"
     ansi-escapes "^4.2.1"
-    ansi-styles "^4.0.0"
+    ansi-styles "^4.1.0"
     arr-flatten "^1.1.0"
     array-union "^2.1.0"
     array-uniq "^2.1.0"