Bump actions/upload-artifact from 6 to 7 (#155)

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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: gstraccini[bot] <150967461+gstraccini[bot]@users.noreply.github.com>

Author: dependabot[bot]

action.yml

@@ -201,36 +201,36 @@ runs:
         echo "secrets-leaked=$quantity" >> $GITHUB_OUTPUT
 
     - name: Upload artifacts secrets-result.log
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       if: always() && env.SCAN_RAN == 'true'
       with:
         name: report-log
         path: secrets-result.log
 
     - name: Upload artifacts secrets.csv
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       if: env.SECRETS_FOUND == 'true'
       id: secrets
       with:
         name: secrets-csv
         path: secrets.csv
 
     - name: Upload artifacts secrets-result.csv
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       if: env.SECRETS_FOUND == 'true'
       with:
         name: report-csv
         path: secrets-result.csv
 
     - name: Upload artifacts secrets-result.md
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       if: env.SECRETS_FOUND == 'true'
       with:
         name: report-md
         path: secrets-result.md
 
     - name: Upload artifacts fingerprint.txt
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       if: env.SECRETS_FOUND == 'true'
       with:
         name: fingerprint-txt