build(deps): bump actions/upload-artifact to 7.0.1 (#59)

Merge the reviewed Dependabot update after end-to-end artifact workflow validation.

Author: Aethersailor

.github/workflows/dependabot-policy.yml

@@ -50,7 +50,7 @@ jobs:
             }' > "$policy_dir/policy.json"
 
       - name: Upload policy evidence
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: dependabot-policy-${{ github.event.pull_request.number }}-${{ github.event.pull_request.head.sha }}
           path: ${{ runner.temp }}/dependabot-policy/policy.json