chore(deps): update dependency postcss-loader to v4.0.3 [skip netlify] (#2564)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

yarn.lock

@@ -7745,10 +7745,10 @@ fsevents@^1.2.7:
   languageName: node
   linkType: hard
 
-"klona@npm:^2.0.3":
-  version: 2.0.3
-  resolution: "klona@npm:2.0.3"
-  checksum: 69df085420a280e8d2e8c6564e23ba2bee2a03e8ca5f51e9409276bb54c6178a74adee0f94c2fc62caa584e1d2109e679abd8cc4f1114fbcd9e2886b909e8e62
+"klona@npm:^2.0.3, klona@npm:^2.0.4":
+  version: 2.0.4
+  resolution: "klona@npm:2.0.4"
+  checksum: be4a0c784135b6a75ac2c5ac9564894807aa050de041ac775a20d3ee46969ac5c3d37503d12c215c7decb592196e59e22852fd0cf28ac0cc29fe3a6df9168624
   languageName: node
   linkType: hard
 
@@ -9730,18 +9730,18 @@ fsevents@^1.2.7:
   linkType: hard
 
 "postcss-loader@npm:^4.0.0":
-  version: 4.0.2
-  resolution: "postcss-loader@npm:4.0.2"
+  version: 4.0.3
+  resolution: "postcss-loader@npm:4.0.3"
   dependencies:
     cosmiconfig: ^7.0.0
-    klona: ^2.0.3
+    klona: ^2.0.4
     loader-utils: ^2.0.0
     schema-utils: ^2.7.1
     semver: ^7.3.2
   peerDependencies:
     postcss: ^7.0.0 || ^8.0.1
     webpack: ^4.0.0 || ^5.0.0
-  checksum: 99ea0b3a86089709f933bdf03eee04d832c1628365003aed948022214e0744f206a55bdfd6d4e327d8af05d9d1ae3e0294f92b34594d9502693c0203ce9d7e45
+  checksum: 2f3f14040a715eeb3919b5da1767c445cf24d7f5046663df827256f534ee5eae79fcbfdcfbe05093cc70636b61ca1fa5d99e5549d9b976c62689b21ba43a4702
   languageName: node
   linkType: hard