Bump node-version to 22.x for GitHub workflows

Author: myabc

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: 18
+          node-version: 22
       - run: yarn
       - name: Building
         run: yarn build
@@ -30,7 +30,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: 18
+          node-version: 22
       - uses: actions/download-artifact@v4
         with:
           name: octicons-build
@@ -52,7 +52,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: 18
+          node-version: 22
       - uses: actions/download-artifact@v4
         with:
           name: octicons-build
@@ -76,7 +76,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: 18
+          node-version: 22
       - uses: actions/download-artifact@v4
         with:
           name: octicons-build

.github/workflows/optimize.yml

@@ -25,7 +25,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: 18
+          node-version: 22
       - run: npm install
       - run: npm run svgo
 

.github/workflows/release.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: 18.x
+          node-version: 22.x
 
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1