fix(ci): force bash shell for set-version step on Windows (#10)

PowerShell (the default shell on Windows runners) does not support
bash parameter expansion syntax like ${VERSION#v}. Adding `shell: bash`
forces Git Bash, which is available on Windows GitHub-hosted runners.

Signed-off-by: Philippe Martin <phmartin@redhat.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: feloy

.github/workflows/release.yml

@@ -35,6 +35,7 @@ jobs:
         run: cargo install cargo-edit --locked
 
       - name: Set version from tag
+        shell: bash
         run: |
           VERSION="${{ github.ref_name }}"
           cargo set-version "${VERSION#v}"