Meltano: Add installation instructions for target-jsonl-blob executable

[coderabbitai]

Description

The cratedb-to-file Meltano example includes a target-jsonl-blob loader configuration in framework/meltano/cratedb-to-file/meltano.yml that references a local executable (./target-jsonl-blob), but there are no instructions on how to obtain or build this binary.

Tasks

• Add installation/setup instructions to the README or a separate INSTALL.md file
• Document how to download or build the target-jsonl-blob binary
• Include source repository, build commands, or release URLs
• Explain the executable path configuration and the bucket config example

Related Files

• framework/meltano/cratedb-to-file/meltano.yml (lines 105-115)
• framework/meltano/cratedb-to-file/README.md

References

• PR: Meltano: Add example cratedb-to-file #1368
• Comment: Meltano: Add example cratedb-to-file #1368 (comment)
• Upstream repository: https://github.com/MeltanoLabs/target-jsonl-blob

Requested by: @amotl