Upgrade actions checkout to v6

.github/workflows/clippy_mq.yml

@@ -34,7 +34,7 @@ jobs:
     steps:
     # Setup
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         persist-credentials: false
 
@@ -94,7 +94,7 @@ jobs:
     steps:
      # Setup
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         persist-credentials: false
 
@@ -112,7 +112,7 @@ jobs:
     steps:
     # Setup
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         persist-credentials: false
 
@@ -168,7 +168,7 @@ jobs:
     steps:
     # Setup
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         persist-credentials: false
 
@@ -179,7 +179,7 @@ jobs:
 
     # Download
     - name: Download target dir
-      uses: actions/download-artifact@v5
+      uses: actions/download-artifact@v6
       with:
         name: binaries
         path: target/debug

.github/workflows/deploy.yml

@@ -25,13 +25,13 @@ jobs:
     steps:
     # Setup
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         # Unsetting this would make so that any malicious package could get our Github Token
         persist-credentials: false
 
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         ref: ${{ env.TARGET_BRANCH }}
         path: 'out'

.github/workflows/lintcheck.yml

@@ -24,7 +24,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         fetch-depth: 2
         # Unsetting this would make so that any malicious package could get our Github Token
@@ -80,7 +80,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         # Unsetting this would make so that any malicious package could get our Github Token
         persist-credentials: false
@@ -113,7 +113,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         # Unsetting this would make so that any malicious package could get our Github Token
         persist-credentials: false

.github/workflows/remark.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
     # Setup
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         # Unsetting this would make so that any malicious package could get our Github Token
         persist-credentials: false

book/src/continuous_integration/github_actions.md

@@ -15,7 +15,7 @@ jobs:
   clippy_check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Run Clippy
         run: cargo clippy --all-targets --all-features
 ```