action: bump setup-go v5->v6 and upload-artifact v4->v7 (Node 24) (#26)

Silences the Node.js 20 deprecation notices: the pinned setup-go@v5 and
upload-artifact@v4 still ship the Node 20 runtime. The current majors run on
Node 24. Inputs used (go-version-file, cache-dependency-path, name, path,
if-no-files-found) are unchanged across these versions.


Claude-Session: https://claude.ai/code/session_01PUCfxbDh7AQkAMAxA3weXV

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: bluecmd

action.yml

@@ -87,7 +87,7 @@ runs:
   using: composite
   steps:
     - name: Set up Go
-      uses: actions/setup-go@v5
+      uses: actions/setup-go@v6
       with:
         go-version-file: ${{ github.action_path }}/go.mod
         cache-dependency-path: ${{ github.action_path }}/go.sum
@@ -165,7 +165,7 @@ runs:
 
     - name: Upload boot log artifact
       if: always()
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v7
       with:
         name: vedge1000-boot-log
         path: ${{ inputs.boot-log }}