Update dependency cssnano to v5.0.7

Author: renovate-bot

package.json

@@ -54,7 +54,7 @@
 		"create-pwa": "2.3.1",
 		"critical": "4.0.1",
 		"css-loader": "6.2.0",
-		"cssnano": "5.0.6",
+		"cssnano": "5.0.7",
 		"file-loader": "6.2.0",
 		"mini-css-extract-plugin": "2.1.0",
 		"node-sass": "6.0.1",

yarn.lock

@@ -2841,14 +2841,15 @@ cssnano-utils@^2.0.1:
   resolved "https://registry.yarnpkg.com/cssnano-utils/-/cssnano-utils-2.0.1.tgz#8660aa2b37ed869d2e2f22918196a9a8b6498ce2"
   integrity sha512-i8vLRZTnEH9ubIyfdZCAdIdgnHAUeQeByEeQ2I7oTilvP9oHO6RScpeq3GsFUVqeB8uZgOQ9pw8utofNn32hhQ==
 
-cssnano@5.0.6:
-  version "5.0.6"
-  resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-5.0.6.tgz#2a91ad34c6521ae31eab3da9c90108ea3093535d"
-  integrity sha512-NiaLH/7yqGksFGsFNvSRe2IV/qmEBAeDE64dYeD8OBrgp6lE8YoMeQJMtsv5ijo6MPyhuoOvFhI94reahBRDkw==
+cssnano@5.0.7:
+  version "5.0.7"
+  resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-5.0.7.tgz#e81894bdf31aa01a0ca3d1d0eee47be18f7f3012"
+  integrity sha512-7C0tbb298hef3rq+TtBbMuezBQ9VrFtrQEsPNuBKNVgWny/67vdRsnq8EoNu7TRjAHURgYvWlRIpCUmcMZkRzw==
   dependencies:
-    cosmiconfig "^7.0.0"
     cssnano-preset-default "^5.1.3"
     is-resolvable "^1.1.0"
+    lilconfig "^2.0.3"
+    yaml "^1.10.2"
 
 csso@^4.0.2, csso@^4.2.0:
   version "4.2.0"