chore: bump actions/download-artifact from 5 to 6 (#776)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -61,7 +61,7 @@ jobs:
             FREEBSD_ID: freebsd15
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: pfSense-pkg-RESTAPI-${{ env.BUILD_VERSION }}-${{ matrix.FREEBSD_ID }}.pkg
           path: pfSense-pkg-RESTAPI-${{ env.BUILD_VERSION }}-${{ matrix.FREEBSD_ID }}.pkg
@@ -111,7 +111,7 @@ jobs:
             FREEBSD_ID: freebsd15
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: openapi-${{ matrix.PFSENSE_VERSION }}.json
           path: openapi-${{ matrix.PFSENSE_VERSION }}.json
@@ -142,7 +142,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: pfSense-pkg-RESTAPI-${{ env.BUILD_VERSION }}-${{ matrix.FREEBSD_ID }}.pkg
           path: pfSense-pkg-RESTAPI-${{ env.BUILD_VERSION }}-${{ matrix.FREEBSD_ID }}.pkg

.github/workflows/release.yml

@@ -74,7 +74,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: pfSense-${{ env.DEFAULT_PFSENSE_VERSION }}-pkg-RESTAPI.pkg
           path: pfSense-${{ env.DEFAULT_PFSENSE_VERSION }}-pkg-RESTAPI.pkg
@@ -149,13 +149,13 @@ jobs:
           mv ./site/* ./www/
 
       - name: Download OpenAPI schema
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: openapi.json
           path: openapi.json
 
       - name: Download GraphQL schema
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: schema.graphql
           path: schema.graphql