[swift] Update the release version to 3

Chrome Web Store doesn't accept the version number 90003

Author: kateinoigakukun

.github/workflows/build-swift-debugging.yaml

@@ -63,7 +63,7 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: '22'
-      - run: ./tools/bootstrap.py ../../out -verbose -no-check -release-version 90003 -patch-level 0
+      - run: ./tools/bootstrap.py ../../out -verbose -no-check -release-version 3 -patch-level 0
         working-directory: ./extensions/cxx_debugging/
       - uses: actions/upload-artifact@v4
         with: