build(deps): bump actions/download-artifact from 5 to 6

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](https://github.com/actions/download-artifact/compare/v5...v6)

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

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

.github/workflows/buildx-lab-releases-json.yml

@@ -35,7 +35,7 @@ jobs:
         uses: actions/checkout@v5
       -
         name: Download
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: buildx-lab-releases-json
           path: .github

.github/workflows/buildx-releases-json.yml

@@ -35,7 +35,7 @@ jobs:
         uses: actions/checkout@v5
       -
         name: Download
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: buildx-releases-json
           path: .github

.github/workflows/compose-lab-releases-json.yml

@@ -35,7 +35,7 @@ jobs:
         uses: actions/checkout@v5
       -
         name: Download
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: compose-lab-releases-json
           path: .github

.github/workflows/compose-releases-json.yml

@@ -35,7 +35,7 @@ jobs:
         uses: actions/checkout@v5
       -
         name: Download
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: compose-releases-json
           path: .github

.github/workflows/docker-releases-json.yml

@@ -36,7 +36,7 @@ jobs:
         uses: actions/checkout@v5
       -
         name: Download
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: docker-releases-json
           path: .github

.github/workflows/regclient-releases-json.yml

@@ -35,7 +35,7 @@ jobs:
         uses: actions/checkout@v5
       -
         name: Download
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: regclient-releases-json
           path: .github

.github/workflows/undock-releases-json.yml

@@ -35,7 +35,7 @@ jobs:
         uses: actions/checkout@v5
       -
         name: Download
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: undock-releases-json
           path: .github