Bump actions/upload-artifact from 4 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/build_sdk.yml

@@ -66,7 +66,7 @@ jobs:
     #     echo "rockchip_rk3566_radxa_zero_3w_defconfig" | ./build.sh
 
     - name: Upload Artifact
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v7
       with:
         name: compiled-image
         path: buildroot/output/image/*

.github/workflows/eventbuild.yml

@@ -113,7 +113,7 @@ jobs:
       run: echo "artifact_name=OpenHD-image-${{ matrix.TARGET }}-${{ matrix.DISTRO }}-${GITHUB_REF##*/}-${{ env.DT }}" >> $GITHUB_ENV
 
     - name: Pack image for ${{ matrix.TARGET }}
-      uses: 'actions/upload-artifact@v4'
+      uses: 'actions/upload-artifact@v7'
       with:
         name: "${{ matrix.TARGET }}-${{ env.DT }}"
         path: |
@@ -210,7 +210,7 @@ jobs:
       run: echo "artifact_name=OpenHD-EMMC-image-${{ matrix.TARGET }}-${{ matrix.DISTRO }}-${GITHUB_REF##*/}-${{ env.DT }}" >> $GITHUB_ENV
 
     - name: Pack image for ${{ matrix.TARGET }}
-      uses: 'actions/upload-artifact@v4'
+      uses: 'actions/upload-artifact@v7'
       with:
         name: "${{ matrix.TARGET }}-${{ env.DT }}-EMMC"
         path: |