Compress release files with zstd.

Author: joaander

.github/workflows/release.yaml

@@ -48,8 +48,8 @@ jobs:
     - name: Remove .git
       run: rm -rf "${name}-${ref}/.git" && ls -laR "${name}-${ref}"
 
-    - name: Tar/xz source
-      run: tar -cvJf "${name}-${ref}.tar.xz" "${name}-${ref}"
+    - name: Tar/zstd source
+      run: tar --zstd -cvf "${name}-${ref}.tar.zst" "${name}-${ref}"
 
     - uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
       with:
@@ -124,11 +124,11 @@ jobs:
     - name: Check output
       run: file "target/${{ matrix.target }}/release/${name}"
     - name: Compress
-      run: cp "target/${{ matrix.target }}/release/${name}" . && tar -cvJf "${name}-${ref}-${{ matrix.target }}.tar.xz" "${name}"
+      run: cp "target/${{ matrix.target }}/release/${name}" . && tar --zstd -cvf "${name}-${ref}-${{ matrix.target }}.tar.zst" "${name}"
     - uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
       with:
         name: ${{ matrix.target }}
-        path: "${{ env.name }}-${{ env.ref }}-${{ matrix.target }}.tar.xz"
+        path: "${{ env.name }}-${{ env.ref }}-${{ matrix.target }}.tar.zst"
 
   publish_github:
     name: Publish [GitHub]
@@ -149,7 +149,7 @@ jobs:
       if: startsWith(github.ref, 'refs/tags/')
       with:
         files: |
-          *.xz
+          *.zst
         body_path: release-notes.md
         make_latest: true
       env: