Update dependency @fullhuman/postcss-purgecss to v4

package.json

@@ -21,7 +21,7 @@
     "release": "auto shipit"
   },
   "dependencies": {
-    "@fullhuman/postcss-purgecss": "2.3.0",
+    "@fullhuman/postcss-purgecss": "4.0.0",
     "compression": "1.7.4",
     "congress-legislators": "https://github.com/unitedstates/congress-legislators.git",
     "polka": "next",

yarn.lock

@@ -1610,13 +1610,12 @@
     minimatch "^3.0.4"
     strip-json-comments "^3.1.1"
 
-"@fullhuman/postcss-purgecss@2.3.0":
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/@fullhuman/postcss-purgecss/-/postcss-purgecss-2.3.0.tgz#50a954757ec78696615d3e118e3fee2d9291882e"
-  integrity sha512-qnKm5dIOyPGJ70kPZ5jiz0I9foVOic0j+cOzNDoo8KoCf6HjicIZ99UfO2OmE7vCYSKAAepEwJtNzpiiZAh9xw==
+"@fullhuman/postcss-purgecss@4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/@fullhuman/postcss-purgecss/-/postcss-purgecss-4.0.0.tgz#9e27ccdc5d19192af8b59d9d9e4f480cfb5c55c9"
+  integrity sha512-1DNYIDxFsvGOeKdc2BFtIQriMWwzX6dY+9q0Z0n9TNZhFZ9T6nHRZHPC22aYLlPDd0ucCgIr1deTgDTrjq21KQ==
   dependencies:
-    postcss "7.0.32"
-    purgecss "^2.3.0"
+    purgecss "^4.0.0"
 
 "@fullhuman/postcss-purgecss@^2.1.2":
   version "2.2.0"
@@ -3364,6 +3363,11 @@ commander@^5.0.0:
   resolved "https://registry.yarnpkg.com/commander/-/commander-5.1.0.tgz#46abbd1652f8e059bddaef99bbdcb2ad9cf179ae"
   integrity sha512-P0CysNDQ7rtVw4QIQtm+MRxV66vKFSvlsQvGYXZWR3qFU0jlMKHZZZgw8e+8DSah4UDKMqnknRDQz+xuQXQ/Zg==
 
+commander@^6.0.0:
+  version "6.2.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-6.2.1.tgz#0792eb682dfbc325999bb2b84fddddba110ac73c"
+  integrity sha512-U7VdrJFnJgo4xjrHpTzu0yrHPGImdsmD95ZlgYSEajAn2JKzDhDTPG9kBTefmObL2w/ngeZnilk+OV9CG3d7UA==
+
 commander@^6.2.0:
   version "6.2.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-6.2.0.tgz#b990bfb8ac030aedc6d11bc04d1488ffef56db75"
@@ -6727,6 +6731,11 @@ ms@2.1.2, ms@^2.1.1:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
   integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
 
+nanoid@^3.1.20:
+  version "3.1.20"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.20.tgz#badc263c6b1dcf14b71efaa85f6ab4c1d6cfc788"
+  integrity sha512-a1cQNyczgKbLX9jwbS/+d7W8fX/RfgYR7lVWwWOGIPNgK2m0MWvrGF6/m4kk6U3QcFMnZf3RIhL0v2Jgh/0Uxw==
+
 nanomatch@^1.2.9:
   version "1.2.13"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"
@@ -7461,7 +7470,16 @@ postcss@7.0.28:
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@7.0.32, postcss@^7.0.0, postcss@^7.0.11, postcss@^7.0.18, postcss@^7.0.21, postcss@^7.0.30, postcss@^7.0.7:
+postcss@^6.0.9:
+  version "6.0.23"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-6.0.23.tgz#61c82cc328ac60e677645f979054eb98bc0e3324"
+  integrity sha512-soOk1h6J3VMTZtVeVpv15/Hpdl2cBLX3CAw4TAbkpTJiNPk9YP/zWcD1ND+xEtvyuuvKzbxliTOIyvkSeSJ6ag==
+  dependencies:
+    chalk "^2.4.1"
+    source-map "^0.6.1"
+    supports-color "^5.4.0"
+
+postcss@^7.0.0, postcss@^7.0.11, postcss@^7.0.18, postcss@^7.0.21, postcss@^7.0.30, postcss@^7.0.7:
   version "7.0.32"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.32.tgz#4310d6ee347053da3433db2be492883d62cec59d"
   integrity sha512-03eXong5NLnNCD05xscnGKGDZ98CyzoqPSMjOe6SuoQY7Z2hIj0Ld1g/O/UQRuOle2aRtiIRDg9tDcTGAkLfKw==
@@ -7470,14 +7488,14 @@ postcss@7.0.32, postcss@^7.0.0, postcss@^7.0.11, postcss@^7.0.18, postcss@^7.0.2
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@^6.0.9:
-  version "6.0.23"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-6.0.23.tgz#61c82cc328ac60e677645f979054eb98bc0e3324"
-  integrity sha512-soOk1h6J3VMTZtVeVpv15/Hpdl2cBLX3CAw4TAbkpTJiNPk9YP/zWcD1ND+xEtvyuuvKzbxliTOIyvkSeSJ6ag==
+postcss@^8.2.1:
+  version "8.2.4"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.2.4.tgz#20a98a39cf303d15129c2865a9ec37eda0031d04"
+  integrity sha512-kRFftRoExRVXZlwUuay9iC824qmXPcQQVzAjbCCgjpXnkdMCJYBu2gTwAaFBzv8ewND6O8xFb3aELmEkh9zTzg==
   dependencies:
-    chalk "^2.4.1"
+    colorette "^1.2.1"
+    nanoid "^3.1.20"
     source-map "^0.6.1"
-    supports-color "^5.4.0"
 
 prelude-ls@^1.2.1:
   version "1.2.1"
@@ -7582,14 +7600,14 @@ purgecss@^2.2.0:
     postcss "7.0.28"
     postcss-selector-parser "^6.0.2"
 
-purgecss@^2.3.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/purgecss/-/purgecss-2.3.0.tgz#5327587abf5795e6541517af8b190a6fb5488bb3"
-  integrity sha512-BE5CROfVGsx2XIhxGuZAT7rTH9lLeQx/6M0P7DTXQH4IUc3BBzs9JUzt4yzGf3JrH9enkeq6YJBe9CTtkm1WmQ==
+purgecss@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/purgecss/-/purgecss-4.0.0.tgz#25446199df2ec40d418caf4b95c7548a011be3f1"
+  integrity sha512-j/y6OtNpEiggw/ipCJUOMNLgLpeAv9L8q+SqzEdDzyVEZOfdWjg8yvgOxhBflNyYgJ8SZ+tTwPxrHT9vQUpEPw==
   dependencies:
-    commander "^5.0.0"
+    commander "^6.0.0"
     glob "^7.0.0"
-    postcss "7.0.32"
+    postcss "^8.2.1"
     postcss-selector-parser "^6.0.2"
 
 q@^1.5.1: