chore(deps): update yarn to v4.9.0 (#558)

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

Author: renovate[bot]

.yarn/releases/yarn-4.8.1.cjs

@@ -17,4 +17,4 @@ supportedArchitectures:
   libc:
     - glibc
 
-yarnPath: .yarn/releases/yarn-4.8.1.cjs
+yarnPath: .yarn/releases/yarn-4.9.0.cjs

.yarn/releases/yarn-4.9.0.cjs

@@ -23,7 +23,7 @@
   "engines": {
     "node": ">=18.0.0"
   },
-  "packageManager": "yarn@4.8.1",
+  "packageManager": "yarn@4.9.0",
   "publishConfig": {
     "provenance": true
   },

.yarnrc.yml

@@ -54,7 +54,7 @@
   "engines": {
     "node": ">=18.0.0"
   },
-  "packageManager": "yarn@4.8.1",
+  "packageManager": "yarn@4.9.0",
   "publishConfig": {
     "provenance": true
   }

package.json

@@ -67,7 +67,7 @@
   "engines": {
     "node": ">=18.0.0"
   },
-  "packageManager": "yarn@4.8.1",
+  "packageManager": "yarn@4.9.0",
   "publishConfig": {
     "provenance": true
   }

packages/colorguard-cli/package.json

@@ -62,7 +62,7 @@
   "engines": {
     "node": ">=18.0.0"
   },
-  "packageManager": "yarn@4.8.1",
+  "packageManager": "yarn@4.9.0",
   "publishConfig": {
     "provenance": true
   }

packages/colorguard-processor/package.json

@@ -2081,7 +2081,7 @@ __metadata:
     "@semantic-release/npm": "npm:12.0.1"
     "@types/node": "npm:22.14.0"
     "@types/yargs": "npm:17.0.33"
-    colorguard-processor: "npm:2.0.104"
+    colorguard-processor: "npm:2.0.105"
     gitmojis: "npm:3.15.0"
     postcss: "npm:8.5.3"
     semantic-release: "npm:24.2.3"
@@ -2094,7 +2094,7 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"colorguard-processor@npm:2.0.104, colorguard-processor@workspace:packages/colorguard-processor":
+"colorguard-processor@npm:2.0.105, colorguard-processor@workspace:packages/colorguard-processor":
   version: 0.0.0-use.local
   resolution: "colorguard-processor@workspace:packages/colorguard-processor"
   dependencies:
@@ -2112,7 +2112,7 @@ __metadata:
     log-symbols: "npm:7.0.0"
     plur: "npm:5.1.0"
     postcss: "npm:8.5.3"
-    postcss-colorguard: "npm:2.0.28"
+    postcss-colorguard: "npm:2.0.29"
     postcss-reporter: "npm:7.1.0"
     semantic-release: "npm:24.2.3"
     semantic-release-gitmoji: "npm:1.6.8"
@@ -6125,7 +6125,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss-colorguard@npm:2.0.28, postcss-colorguard@workspace:packages/postcss-colorguard":
+"postcss-colorguard@npm:2.0.29, postcss-colorguard@workspace:packages/postcss-colorguard":
   version: 0.0.0-use.local
   resolution: "postcss-colorguard@workspace:packages/postcss-colorguard"
   dependencies: