ci: bump actions/download-artifact from 4.1.2 to 4.1.4 (ietf-tools#7136)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4.1.2 to 4.1.4.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4.1.2...v4.1.4)

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

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

@@ -150,7 +150,7 @@ jobs:
 
     - name: Download a Coverage Results
       if: ${{ github.event.inputs.skiptests == 'false' || github.ref_name == 'release' }}
-      uses: actions/download-artifact@v4.1.2
+      uses: actions/download-artifact@v4.1.4
       with:
         name: coverage
 
@@ -374,7 +374,7 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Download a Release Artifact
-      uses: actions/download-artifact@v4.1.2
+      uses: actions/download-artifact@v4.1.4
       with:
         name: release-${{ env.PKG_VERSION }}
 
@@ -410,7 +410,7 @@ jobs:
 
     steps:
     - name: Download a Release Artifact
-      uses: actions/download-artifact@v4.1.2
+      uses: actions/download-artifact@v4.1.4
       with:
         name: release-${{ env.PKG_VERSION }}
         path: /a/www/ietf-datatracker/main.dev.${{ github.run_number }}