wip: pg17 support

[pmp-p]

• renamed postgres.{data/js/wasm} to pglite.{data/js/wasm} to avoid confusion with node rawfs build of postgres programs.
• fix full test search lang tests to be explicit about selected language because "simple" dictionnay is now the default ( C locale, forced UTF-8 ).

[github-actions]

Built bundles:

• Postgres WASM:
• Interim build files:

[copiltembel]

@pmp-p I believe the issue is that the docker build of postgres-pglite still uses postgres.{data/js/wasm}, whereas your changes expect pglite... instead.