Update actions/checkout to v6

Co-authored-by: VibeXP Bot <bot@vibexp.io>

Author: shahariaazam

.github/workflows/release.yaml

@@ -13,7 +13,7 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/test.yaml

@@ -5,7 +5,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
       - name: Setup OAuth Mock Server
         uses: ./
         with: