Update dependency postcss to v8.4.39 (#2289)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

frontend/public/package.json

@@ -71,7 +71,7 @@
     "nyc": "15.1.0",
     "object.entries": "1.1.8",
     "popper.js": "1.16.1",
-    "postcss": "8.4.38",
+    "postcss": "8.4.39",
     "postcss-loader": "6.2.1",
     "posthog-js": "^1.75.4",
     "prettier-eslint": "^16.3.0",

yarn.lock

@@ -15117,7 +15117,7 @@ __metadata:
     nyc: 15.1.0
     object.entries: 1.1.8
     popper.js: 1.16.1
-    postcss: 8.4.38
+    postcss: 8.4.39
     postcss-loader: 6.2.1
     posthog-js: ^1.75.4
     prettier-eslint: ^16.3.0
@@ -16345,6 +16345,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"picocolors@npm:^1.0.1":
+  version: 1.0.1
+  resolution: "picocolors@npm:1.0.1"
+  checksum: fa68166d1f56009fc02a34cdfd112b0dd3cf1ef57667ac57281f714065558c01828cdf4f18600ad6851cbe0093952ed0660b1e0156bddf2184b6aaf5817553a5
+  languageName: node
+  linkType: hard
+
 "picomatch@npm:^2.0.4, picomatch@npm:^2.2.1, picomatch@npm:^2.2.2, picomatch@npm:^2.2.3, picomatch@npm:^2.3.1":
   version: 2.3.1
   resolution: "picomatch@npm:2.3.1"
@@ -17314,14 +17321,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:8.4.38, postcss@npm:^8.3.5, postcss@npm:^8.4.23, postcss@npm:^8.4.33, postcss@npm:^8.4.4":
-  version: 8.4.38
-  resolution: "postcss@npm:8.4.38"
+"postcss@npm:8.4.39":
+  version: 8.4.39
+  resolution: "postcss@npm:8.4.39"
   dependencies:
     nanoid: ^3.3.7
-    picocolors: ^1.0.0
+    picocolors: ^1.0.1
     source-map-js: ^1.2.0
-  checksum: 649f9e60a763ca4b5a7bbec446a069edf07f057f6d780a5a0070576b841538d1ecf7dd888f2fbfd1f76200e26c969e405aeeae66332e6927dbdc8bdcb90b9451
+  checksum: 14b130c90f165961772bdaf99c67f907f3d16494adf0868e57ef68baa67e0d1f6762db9d41ab0f4d09bab6fb7888588dba3596afd1a235fd5c2d43fba7006ac6
   languageName: node
   linkType: hard
 
@@ -17335,6 +17342,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"postcss@npm:^8.3.5, postcss@npm:^8.4.23, postcss@npm:^8.4.33, postcss@npm:^8.4.4":
+  version: 8.4.38
+  resolution: "postcss@npm:8.4.38"
+  dependencies:
+    nanoid: ^3.3.7
+    picocolors: ^1.0.0
+    source-map-js: ^1.2.0
+  checksum: 649f9e60a763ca4b5a7bbec446a069edf07f057f6d780a5a0070576b841538d1ecf7dd888f2fbfd1f76200e26c969e405aeeae66332e6927dbdc8bdcb90b9451
+  languageName: node
+  linkType: hard
+
 "posthog-js@npm:^1.75.4":
   version: 1.130.1
   resolution: "posthog-js@npm:1.130.1"