blobl v0.3.3

The language server now includes its actual build version in startup and initialization logs, making it clear which installed executable is running.

The LSP initialize response also reports the same build version instead of the old hardcoded value. This applies to blobl lsp, bloblang-lsp, and the legacy language-server entrypoint. Unversioned development builds report dev.

Validation: startup smoke tests check stderr logs and the LSP initialize response for all three entrypoints, including release metadata and development builds; Go tests and vet pass.