ci: upgrade GitHub Actions to Node.js 22 (checkout@v5, setup-node@v5)

Node.js 20 actions are deprecated. Bump to v5 which uses Node.js 22.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Mlaz-code

.github/workflows/deploy-dev.yml

@@ -26,13 +26,13 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: pnpm/action-setup@v4
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
-          node-version: '20'
+          node-version: '22'
           cache: 'pnpm'
 
       - run: pnpm install --frozen-lockfile
@@ -49,13 +49,13 @@ jobs:
     outputs:
       preview_url: ${{ steps.deploy.outputs.preview_url }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: pnpm/action-setup@v4
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
-          node-version: '20'
+          node-version: '22'
           cache: 'pnpm'
 
       - run: npm install --global vercel@latest
@@ -104,7 +104,7 @@ jobs:
     runs-on: ubuntu-latest
     if: inputs.dry_run == true
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 10
       - run: |

.github/workflows/deploy-prod.yml

@@ -37,13 +37,13 @@ jobs:
     timeout-minutes: 10
     if: inputs.rollback != true
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: pnpm/action-setup@v4
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
-          node-version: '20'
+          node-version: '22'
           cache: 'pnpm'
 
       - run: pnpm install --frozen-lockfile
@@ -78,13 +78,13 @@ jobs:
     outputs:
       deployment_url: ${{ steps.deploy.outputs.deployment_url }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: pnpm/action-setup@v4
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
-          node-version: '20'
+          node-version: '22'
           cache: 'pnpm'
 
       - run: npm install --global vercel@latest
@@ -178,7 +178,7 @@ jobs:
     runs-on: ubuntu-latest
     if: inputs.dry_run == true && inputs.rollback != true
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 10
       - run: |