chore(deps): bump actions/upload-artifact from 6 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 6 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v6...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.yml

@@ -43,7 +43,7 @@ jobs:
       run: echo "sha_short=$(git rev-parse --short HEAD)" >> $env:GITHUB_OUTPUT
 
     - name: Store build
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       with: 
           name: Magpie-dev-${{ steps.hash.outputs.sha_short }}-${{ matrix.compiler }}-${{ matrix.platform }}
           path: ./publish/${{ matrix.platform }}

.github/workflows/release.yml

@@ -53,7 +53,7 @@ jobs:
         python scripts/publish.py --compiler=ClangCL --platform=${{ matrix.platform }} --version-major=${{ inputs.major }} --version-minor=${{ inputs.minor }} --version-patch=${{ inputs.patch }} --version-string=$versionString --pfx-path=certs\Magpie.pfx --pfx-password="${{ secrets.MAGPIE_PFX_PASSWORD }}"
     
     - name: Store artifacts
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       with: 
           name: Magpie-${{ steps.tag.outputs.tag }}-${{ matrix.platform }}
           path: publish/${{ matrix.platform }}