Bump actions/checkout from 4 to 6 (#58)

.github/workflows/codeql.yml

@@ -24,7 +24,7 @@ jobs:
 
         steps:
             - name: Checkout repository
-              uses: actions/checkout@v4
+              uses: actions/checkout@v6
 
             - name: Initialize CodeQL
               uses: github/codeql-action/init@v4

.github/workflows/docker-build-push.yml

@@ -16,7 +16,7 @@ jobs:
             security-events: write
 
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Set up Docker Buildx
               uses: docker/setup-buildx-action@v3

.github/workflows/pr-validation.yml

@@ -11,7 +11,7 @@ jobs:
         name: Lint Check
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Setup Node.js
               uses: actions/setup-node@v6
@@ -32,7 +32,7 @@ jobs:
         name: TypeScript Type Check
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Setup Node.js
               uses: actions/setup-node@v6
@@ -50,7 +50,7 @@ jobs:
         name: Unit Tests
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Setup Node.js
               uses: actions/setup-node@v6
@@ -76,7 +76,7 @@ jobs:
         name: Build Application
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Setup Node.js
               uses: actions/setup-node@v6