ci: Pin `cargo-workspaces` to `0.3.6`

.github/workflows/publish-libs.yaml

diff --git a/.github/workflows/publish-libs.yaml b/.github/workflows/publish-libs.yaml
index 93ae567..f2c8b63 100644
--- a/.github/workflows/publish-libs.yaml
+++ b/.github/workflows/publish-libs.yaml
@@ -22,7 +22,7 @@
         run: rustup update --no-self-update stable
 
       - name: Install cargo-workspaces
-        run: cargo install cargo-workspaces
+        run: cargo install cargo-workspaces --version "0.3.6"
 
       - name: Publish Crates
         env: