chore(deps): update dependency postcss-loader to v7

Author: renovate[bot]

frontend/package.json

@@ -34,7 +34,7 @@
     "mustache": "4.2.0",
     "node-sass": "7.0.1",
     "postcss": "8.4.12",
-    "postcss-loader": "6.2.1",
+    "postcss-loader": "7.1.0",
     "postcss-preset-env": "7.4.3",
     "preact": "10.7.1",
     "sass-loader": "12.6.0",

yarn.lock

@@ -26,7 +26,7 @@ __metadata:
     mustache: 4.2.0
     node-sass: 7.0.1
     postcss: 8.4.12
-    postcss-loader: 6.2.1
+    postcss-loader: 7.1.0
     postcss-preset-env: 7.4.3
     preact: 10.7.1
     sass-loader: 12.6.0
@@ -8585,16 +8585,15 @@ __metadata:
   languageName: node
   linkType: hard
 
-"cosmiconfig@npm:^7.0.0":
-  version: 7.0.0
-  resolution: "cosmiconfig@npm:7.0.0"
+"cosmiconfig@npm:^8.0.0":
+  version: 8.1.3
+  resolution: "cosmiconfig@npm:8.1.3"
   dependencies:
-    "@types/parse-json": ^4.0.0
     import-fresh: ^3.2.1
+    js-yaml: ^4.1.0
     parse-json: ^5.0.0
     path-type: ^4.0.0
-    yaml: ^1.10.0
-  checksum: 6801feaa0249e9b9fdde5b3d70dc33b4f9c69095bec94d67e3fe08b66eac24dc7e2099f053597cfbc94b743de269aa5d2cfa7da3fde765433423b06bd122941a
+  checksum: b3d277bc3a8a9e649bf4c3fc9740f4c52bf07387481302aa79839f595045368903bf26ea24a8f7f7b8b180bf46037b027c5cb63b1391ab099f3f78814a147b2b
   languageName: node
   linkType: hard
 
@@ -14447,10 +14446,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"klona@npm:^2.0.5":
-  version: 2.0.5
-  resolution: "klona@npm:2.0.5"
-  checksum: 8c976126ea252b766e648a4866e1bccff9d3b08432474ad80c559f6c7265cf7caede2498d463754d8c88c4759895edd8210c85c0d3155e6aae4968362889466f
+"klona@npm:^2.0.6":
+  version: 2.0.6
+  resolution: "klona@npm:2.0.6"
+  checksum: ac9ee3732e42b96feb67faae4d27cf49494e8a3bf3fa7115ce242fe04786788e0aff4741a07a45a2462e2079aa983d73d38519c85d65b70ef11447bbc3c58ce7
   languageName: node
   linkType: hard
 
@@ -17663,17 +17662,17 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss-loader@npm:6.2.1":
-  version: 6.2.1
-  resolution: "postcss-loader@npm:6.2.1"
+"postcss-loader@npm:7.1.0":
+  version: 7.1.0
+  resolution: "postcss-loader@npm:7.1.0"
   dependencies:
-    cosmiconfig: ^7.0.0
-    klona: ^2.0.5
-    semver: ^7.3.5
+    cosmiconfig: ^8.0.0
+    klona: ^2.0.6
+    semver: ^7.3.8
   peerDependencies:
     postcss: ^7.0.0 || ^8.0.1
     webpack: ^5.0.0
-  checksum: e40ae79c3e39df37014677a817b001bd115d8b10dedf53a07b97513d93b1533cd702d7a48831bdd77b9a9484b1ec84a5d4a723f80e83fb28682c75b5e65e8a90
+  checksum: 44e4018a8f2f81150f501a5ca56e59571d81c965b5a8581f5dbae5e55a113b79bde33c3de0d4397cbf36a3be0c24b7e7e37f0154b6e63df16185edd086d4e352
   languageName: node
   linkType: hard
 
@@ -19333,6 +19332,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"semver@npm:^7.3.8":
+  version: 7.3.8
+  resolution: "semver@npm:7.3.8"
+  dependencies:
+    lru-cache: ^6.0.0
+  bin:
+    semver: bin/semver.js
+  checksum: ba9c7cbbf2b7884696523450a61fee1a09930d888b7a8d7579025ad93d459b2d1949ee5bbfeb188b2be5f4ac163544c5e98491ad6152df34154feebc2cc337c1
+  languageName: node
+  linkType: hard
+
 "send@npm:0.17.1":
   version: 0.17.1
   resolution: "send@npm:0.17.1"
@@ -22216,7 +22226,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"yaml@npm:^1.10.0, yaml@npm:^1.7.2":
+"yaml@npm:^1.7.2":
   version: 1.10.2
   resolution: "yaml@npm:1.10.2"
   checksum: ce4ada136e8a78a0b08dc10b4b900936912d15de59905b2bf415b4d33c63df1d555d23acb2a41b23cf9fb5da41c256441afca3d6509de7247daa062fd2c5ea5f