Fix publish workflow for standalone repository

Remove incorrect working-directory directives that referenced sdk/java
path which doesn't exist in the standalone SDK repository. The workflow
runs directly in the repository root.

Changes:
- Remove working-directory: sdk/java from all workflow steps
- Workflow now compatible with standalone repository structure

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: akovari

.github/workflows/publish.yml

@@ -29,7 +29,6 @@ jobs:
         run: echo "VERSION=${GITHUB_REF#refs/tags/java-v}" >> $GITHUB_OUTPUT
 
       - name: Verify pom.xml version matches tag
-        working-directory: sdk/java
         run: |
           POM_VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
           if [ "$POM_VERSION" != "${{ steps.version.outputs.VERSION }}" ]; then
@@ -38,15 +37,12 @@ jobs:
           fi
 
       - name: Test with Maven
-        working-directory: sdk/java
         run: mvn clean test
 
       - name: Build with Maven
-        working-directory: sdk/java
         run: mvn clean package -DskipTests
 
       - name: Publish to GitHub Packages
-        working-directory: sdk/java
         run: mvn deploy -DskipTests
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}