SK-3002 fix release workflow: use git switch to avoid v3 branch/path ambiguity (#369)

The Commit changes step ran 'git checkout v3'. Since the repo now contains a
v3/ directory, git could not disambiguate the 'v3' branch from the 'v3' path
and failed with: fatal: 'v3' could be both a local file and a tracking branch.

Use 'git switch' instead, which only operates on branches.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: Devesh-Skyflow

.github/workflows/shared-build-and-deploy.yml

@@ -103,7 +103,7 @@ jobs:
           git config user.email ${{ github.actor }}@users.noreply.github.com
 
           if [[ "${{ inputs.tag }}" == "beta" || "${{ inputs.tag }}" == "public" ]]; then
-            git checkout ${{ env.branch_name }}
+            git switch ${{ env.branch_name }}
           fi
 
           git add v3/pom.xml