chore: Added MCP registry publishing workflows to GH actions (#148)

Author: christian-kreuzberger-dtx

.github/workflows/release.yml

@@ -103,3 +103,16 @@ jobs:
               --title "Release ${{ steps.version.outputs.tag }}" \
               --notes-file release_body.md
           fi
+
+      # From https://github.com/modelcontextprotocol/registry/blob/main/docs/guides/publishing/github-actions.md
+      - name: Install MCP Publisher
+        run: |
+          curl -L "https://github.com/modelcontextprotocol/registry/releases/download/v1.0.0/mcp-publisher_1.0.0_$(uname -s | tr '[:upper:]' '[:lower:]')_$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/').tar.gz" | tar xz mcp-publisher
+
+      # Login to GitHub - apparently this works out of the box with GH Workflows
+      - name: Login to MCP Registry
+        run: ./mcp-publisher login github-oidc
+
+      # Publish the package to the MCP Registry
+      - name: Publish to MCP Registry
+        run: ./mcp-publisher publish