[release] update mukti-bin

This pulls in mukti-bin 0.6.1, which has support for the additional per-release
metadata used by nextest 0.9.62 and above.

.github/workflows/release.yml

@@ -252,7 +252,7 @@ jobs:
       - name: Download mukti
         run: |
           mkdir -p ~/bin
-          curl -LsSf "https://github.com/nextest-rs/mukti/releases/download/mukti-bin-0.6.0/mukti-bin-0.6.0-x86_64-unknown-linux-gnu.tar.gz" \
+          curl -LsSf "https://github.com/nextest-rs/mukti/releases/download/mukti-bin-0.6.1/mukti-bin-0.6.1-x86_64-unknown-linux-musl.tar.gz" \
             | tar xzf - -C ~/bin
       - name: Add release metadata
         run: |