chore: bump actions/upload-artifact from 5 to 6

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

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

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -46,7 +46,7 @@ jobs:
           /usr/local/bin/VBoxManage controlvm ${{ matrix.FREEBSD_VERSION }} poweroff || true
           /usr/local/bin/VBoxManage snapshot ${{matrix.FREEBSD_VERSION}} restore initial
 
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-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
@@ -96,7 +96,7 @@ jobs:
           /usr/local/bin/VBoxManage controlvm ${{ matrix.PFSENSE_VERSION }} poweroff || true
           /usr/local/bin/VBoxManage snapshot ${{ matrix.PFSENSE_VERSION }} restore initial
 
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: openapi-${{ matrix.PFSENSE_VERSION }}.json
           path: openapi-${{ matrix.PFSENSE_VERSION }}.json

.github/workflows/release.yml

@@ -60,7 +60,7 @@ jobs:
           /usr/local/bin/VBoxManage controlvm ${{ matrix.FREEBSD_VERSION }} poweroff || true
           /usr/local/bin/VBoxManage snapshot ${{matrix.FREEBSD_VERSION}} restore initial
 
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: pfSense-${{ matrix.PFSENSE_VERSION }}-pkg-RESTAPI.pkg
           path: pfSense-${{ matrix.PFSENSE_VERSION }}-pkg-RESTAPI.pkg
@@ -112,13 +112,13 @@ jobs:
           /usr/local/bin/VBoxManage snapshot pfSense-${{ env.DEFAULT_PFSENSE_VERSION }}-RELEASE restore initial
 
       - name: Upload OpenAPI schema
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: openapi.json
           path: openapi.json
 
       - name: Upload GraphQL schema
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: schema.graphql
           path: schema.graphql