build(deps): bump postcss from 8.5.6 to 8.5.12 in /openfeature-provider/js (#387)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

openfeature-provider/js/yarn.lock

@@ -2073,13 +2073,13 @@ __metadata:
   linkType: hard
 
 "postcss@npm:^8.5.6":
-  version: 8.5.6
-  resolution: "postcss@npm:8.5.6"
+  version: 8.5.12
+  resolution: "postcss@npm:8.5.12"
   dependencies:
     nanoid: "npm:^3.3.11"
     picocolors: "npm:^1.1.1"
     source-map-js: "npm:^1.2.1"
-  checksum: 10c0/5127cc7c91ed7a133a1b7318012d8bfa112da9ef092dddf369ae699a1f10ebbd89b1b9f25f3228795b84585c72aabd5ced5fc11f2ba467eedf7b081a66fad024
+  checksum: 10c0/5baebaf574c567bc1b3d61197f38af4ce5920b8f611c887fb6bc3dcc14af00253c169dbf19897bc889cce0b0d9818ab5eb4ea0caedf02b0bab10da8a43ce8c12
   languageName: node
   linkType: hard