Bump actions/download-artifact from 5.0.0 to 6.0.0

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 5.0.0 to 6.0.0.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@634f93c...018cc2c)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/publish-release.yml

@@ -140,7 +140,7 @@ jobs:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 #v5.0.0
         with:
           ref: ${{ github.event.workflow_run.head_branch }}
-      - uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 #v5.0.0
+      - uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 #v6.0.0
         with:
           name: update-site
       - name: Prepare Release Notes
@@ -179,7 +179,7 @@ jobs:
       run:
         shell: bash
     steps:
-      - uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 #v5.0.0
+      - uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 #v6.0.0
         with:
           name: update-site
       - name: Setup ssh key for sourceforge
@@ -226,7 +226,7 @@ jobs:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 #v5.0.0
         with:
           ref: ${{ github.event.workflow_run.head_branch }}
-      - uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 #v5.0.0
+      - uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 #v6.0.0
         with:
           name: update-site
       - uses: actions/create-github-app-token@67018539274d69449ef7c02e8e71183d1719ab42 #v2.1.4

.github/workflows/publish-snapshot.yml

@@ -130,7 +130,7 @@ jobs:
       run:
         shell: bash
     steps:
-      - uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 #v5.0.0
+      - uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 #v6.0.0
         with:
           name: update-site
       - name: Setup ssh key for sourceforge
@@ -174,7 +174,7 @@ jobs:
       run:
         shell: bash
     steps:
-      - uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 #v5.0.0
+      - uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 #v6.0.0
         with:
           name: update-site
       - uses: actions/create-github-app-token@67018539274d69449ef7c02e8e71183d1719ab42 #v2.1.4