Bump postcss-loader from 3.0.0 to 4.3.0

Bumps [postcss-loader](https://github.com/webpack-contrib/postcss-loader) from 3.0.0 to 4.3.0.
- [Release notes](https://github.com/webpack-contrib/postcss-loader/releases)
- [Changelog](https://github.com/webpack-contrib/postcss-loader/blob/v4.3.0/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/postcss-loader/compare/v3.0.0...v4.3.0)

---
updated-dependencies:
- dependency-name: postcss-loader
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -87,7 +87,7 @@
     "path-complete-extname": "^1.0.0",
     "pg": "^8.5.0",
     "postcss": "^8.4.18",
-    "postcss-loader": "^3.0.0",
+    "postcss-loader": "^4.3.0",
     "postcss-object-fit-images": "^1.1.2",
     "promise.prototype.finally": "^3.1.3",
     "prop-types": "^15.8.1",

yarn.lock

@@ -5981,13 +5981,6 @@ immutable@^4.0.0, immutable@^4.1.0:
   resolved "https://registry.yarnpkg.com/immutable/-/immutable-4.1.0.tgz#f795787f0db780183307b9eb2091fcac1f6fafef"
   integrity sha512-oNkuqVTA8jqG1Q6c+UglTOD1xhC1BtjKI7XkCXRkZHrN5m18/XsnUp8Q89GkQO/z+0WjonSvl0FLhDYftp46nQ==
 
-import-cwd@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/import-cwd/-/import-cwd-2.1.0.tgz#aa6cf36e722761285cb371ec6519f53e2435b0a9"
-  integrity sha1-qmzzbnInYShcs3HsZRn1PiQ1sKk=
-  dependencies:
-    import-from "^2.1.0"
-
 import-fresh@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/import-fresh/-/import-fresh-2.0.0.tgz#d81355c15612d386c61f9ddd3922d4304822a546"
@@ -6012,13 +6005,6 @@ import-fresh@^3.1.0:
     parent-module "^1.0.0"
     resolve-from "^4.0.0"
 
-import-from@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/import-from/-/import-from-2.1.0.tgz#335db7f2a7affd53aaa471d4b8021dee36b7f3b1"
-  integrity sha1-M1238qev/VOqpHHUuAId7ja387E=
-  dependencies:
-    resolve-from "^3.0.0"
-
 import-lazy@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/import-lazy/-/import-lazy-4.0.0.tgz#e8eb627483a0a43da3c03f3e35548be5cb0cc153"
@@ -7282,7 +7268,7 @@ loader-runner@^2.4.0:
   resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.4.0.tgz#ed47066bfe534d7e84c4c7b9998c2a75607d9357"
   integrity sha512-Jsmr89RcXGIwivFY21FcRrisYZfvLMTWx5kOLc+JTxtpBOG6xML0vzbc6SEQG2FO9/4Fc3wW4LVcB5DmGflaRw==
 
-loader-utils@^1.1.0, loader-utils@^1.2.3, loader-utils@^1.4.0:
+loader-utils@^1.2.3, loader-utils@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.4.0.tgz#c579b5e34cb34b1a74edc6c1fb36bfa371d5a613"
   integrity sha512-qH0WSMBtn/oHuwjy/NucEgbx5dbxxnxup9s4PVXJUDHZBQY+s0NWA9rJf53RBnQZxfch7euUui7hpoAPvALZdA==
@@ -8694,23 +8680,16 @@ postcss-discard-overridden@^4.0.1:
   dependencies:
     postcss "^7.0.0"
 
-postcss-load-config@^2.0.0:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/postcss-load-config/-/postcss-load-config-2.1.2.tgz#c5ea504f2c4aef33c7359a34de3573772ad7502a"
-  integrity sha512-/rDeGV6vMUo3mwJZmeHfEDvwnTKKqQ0S7OHUi/kJvvtx3aWtyWG2/0ZWnzCt2keEclwN6Tf0DST2v9kITdOKYw==
+postcss-loader@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/postcss-loader/-/postcss-loader-4.3.0.tgz#2c4de9657cd4f07af5ab42bd60a673004da1b8cc"
+  integrity sha512-M/dSoIiNDOo8Rk0mUqoj4kpGq91gcxCfb9PoyZVdZ76/AuhxylHDYZblNE8o+EQ9AMSASeMFEKxZf5aU6wlx1Q==
   dependencies:
-    cosmiconfig "^5.0.0"
-    import-cwd "^2.0.0"
-
-postcss-loader@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/postcss-loader/-/postcss-loader-3.0.0.tgz#6b97943e47c72d845fa9e03f273773d4e8dd6c2d"
-  integrity sha512-cLWoDEY5OwHcAjDnkyRQzAXfs2jrKjXpO/HQFcc5b5u/r7aa471wdmChmwfnv7x2u840iat/wi0lQ5nbRgSkUA==
-  dependencies:
-    loader-utils "^1.1.0"
-    postcss "^7.0.0"
-    postcss-load-config "^2.0.0"
-    schema-utils "^1.0.0"
+    cosmiconfig "^7.0.0"
+    klona "^2.0.4"
+    loader-utils "^2.0.0"
+    schema-utils "^3.0.0"
+    semver "^7.3.4"
 
 postcss-media-query-parser@^0.2.3:
   version "0.2.3"