fix: Use single-threaded tests in version-bump workflow

Author: 0xvasanth

.github/workflows/version-bump.yml

@@ -61,7 +61,7 @@ jobs:
       - name: Build release artifacts
         run: |
           cargo build --release
-          cargo test --release
+          cargo test --release -- --test-threads=1
       
       - name: Push tag
         run: |