CI: bump release workflow actions to current majors

Author: kristjanvalur

.github/workflows/buildcommit.yml

@@ -166,7 +166,7 @@ jobs:
     if: false  # Disabled - libraries no longer committed to repository
     steps:
     - uses: actions/checkout@v6.0.2
-    - uses: actions/download-artifact@v4
+    - uses: actions/download-artifact@v8
       with:
         path: lib
 
@@ -189,7 +189,7 @@ jobs:
     - uses: actions/checkout@v6.0.2
 
     - name: Download all artifacts
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v8
       with:
         path: artifacts
 
@@ -225,7 +225,7 @@ jobs:
       run: echo "VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
 
     - name: Create GitHub Release
-      uses: softprops/action-gh-release@v1
+      uses: softprops/action-gh-release@v3
       with:
         files: stackman-${{ steps.get_version.outputs.VERSION }}.tar.gz
         body: |