Update actions version

In our builds, we get a message like:

    Node.js 16 actions are deprecated. Please update the following actions
    to use Node.js 20: actions/checkout@v3, actions/upload-artifact@v3.

And looking at the recent documentation [1] it seems we should update
these to instead @v4.

Link: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsuses
Signed-off-by: Frederick Lawler <[email protected]>

.github/workflows/crypto-test-harness.yml

@@ -15,7 +15,7 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y flex bison bc cpio busybox-static kmod
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Build kernel & Modules
         run: |
           cp zeta/test-artifacts/config-um .config
@@ -38,7 +38,7 @@ jobs:
           sudo ./linux initrd=uml-initramfs.cpio.gz > tcrypt.out 2>&1
           cat tcrypt.out
       - name: Collect artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: success() || failure()
         with:
           name: tcrypt_job