Bump the github group with 2 updates

Bumps the github group with 2 updates: [actions/download-artifact](https://github.com/actions/download-artifact) and [actions/upload-artifact](https://github.com/actions/upload-artifact).


Updates `actions/download-artifact` from 6 to 7
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v6...v7)

Updates `actions/upload-artifact` from 5 to 6
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github
...

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

Author: dependabot[bot]

.github/workflows/build_deb.yml

@@ -55,7 +55,7 @@ jobs:
       run: make get-tar tar=${{ inputs.tar-url }}
     - name: Download the tarfile from artifacts
       if: ${{ inputs.tar-file-name }}
-      uses: actions/download-artifact@v6
+      uses: actions/download-artifact@v7
       with:
         name: ${{ inputs.tar-file-name }}
         path: build_src
@@ -68,7 +68,7 @@ jobs:
     - name: Get DEB filename
       id: get-deb-filename
       run: echo "deb-file-name=$(ls dist | grep .deb | cat)" >> $GITHUB_OUTPUT
-    - uses: actions/upload-artifact@v5
+    - uses: actions/upload-artifact@v6
       with:
         name: ${{ steps.get-deb-filename.outputs.deb-file-name }}
         path: dist/${{ steps.get-deb-filename.outputs.deb-file-name }}

.github/workflows/upload_signed_sources.yml

@@ -46,7 +46,7 @@ jobs:
       run: make get-tar tar=${{ github.event.inputs.tar-url }}
     - name: Download the tarfile from artifacts
       if: ${{ inputs.tar-file-name }}
-      uses: actions/download-artifact@v6
+      uses: actions/download-artifact@v7
       with:
         name: ${{ inputs.tar-file-name }}
         path: build_src