workflows: Update other workflow files

Get rid of the remaining node.js warnings by updating the actions.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>

.github/workflows/checkpatch.yml

@@ -8,7 +8,7 @@ jobs:
     steps:
     - name: 'Calculate PR commits + 1'
       run: echo "PR_FETCH_DEPTH=$(( ${{ github.event.pull_request.commits }} + 1 ))" >> $GITHUB_ENV
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         ref: ${{ github.event.pull_request.head.sha }}
         fetch-depth: ${{ env.PR_FETCH_DEPTH }}

.github/workflows/dtoverlaycheck.yml

@@ -25,7 +25,7 @@ jobs:
         sudo apt-get install gcc-arm-linux-gnueabihf libfdt-dev device-tree-compiler
       timeout-minutes: 10
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 1
         clean: true

.github/workflows/kernel-build.yml

@@ -69,7 +69,7 @@ jobs:
         fi
       timeout-minutes: 5
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 1
         clean: true
@@ -101,7 +101,7 @@ jobs:
       run: tar -cvf ${{matrix.name}}_build.tar -C ${{github.workspace}}/install .
 
     - name: Upload results
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: ${{matrix.name}}_build
         path: ${{matrix.name}}_build.tar

.github/workflows/kunit.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Run Generic DRM Tests
         run: |
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install Dependencies
         run: |
@@ -43,7 +43,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install Dependencies
         run: |