Update actions/upload-artifact action to v7 (#17)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/githubci.yml

@@ -70,7 +70,7 @@ jobs:
         make BOARD=${{ matrix.board }} all
         make BOARD=${{ matrix.board }} copy-artifact
 
-    - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+    - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
       with:
         name: ${{ matrix.board }}
         path: _bin/${{ matrix.board }}