main - fix: add missing @semantic-release/exec plugin

- Install @semantic-release/exec plugin in semantic-release workflow
- Fixes semantic-release job failure due to missing module

Author: Zvi Fried

.github/workflows/semantic-release.yml

@@ -45,7 +45,7 @@ jobs:
 
     - name: Install semantic-release
       run: |
-        npm install -g semantic-release @semantic-release/changelog @semantic-release/git @semantic-release/github
+        npm install -g semantic-release @semantic-release/changelog @semantic-release/git @semantic-release/github @semantic-release/exec
 
     - name: Run semantic-release
       env: