Update all actions

.github/workflows/build.yaml

@@ -35,7 +35,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Get git hash
       run: |
@@ -65,7 +65,7 @@ jobs:
         # copy pubkey so that it's included with the files uploaded to the release page
         cp signing-pubkey.asc out/
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: artifacts
         path: out/*
@@ -85,7 +85,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Get git hash
       run: |
@@ -107,7 +107,7 @@ jobs:
       - build
     steps:
       - name: Download artifacts
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4
       - name: Inspect directory after downloading artifacts
         run: ls -alFR
       - name: Create release and upload artifacts