Download Buf 1.75.0

• Fix `buf build` dropping `message_set_wire_format`, `weak` field options, and MessageSet
extensions, and truncating MessageSet extension ranges, when a file has an unused import.
• Fix LSP crash when hovering on a CEL string literal containing a byte that is not valid UTF-8,
such as `'\x95'` in a protovalidate rule.
• Add `BUF_DEBUG`, `BUF_LOG_FORMAT`, and `BUF_TIMEOUT` environment variables as defaults for the
`--debug`, `--log-format`, and `--timeout` global flags. Flags take precedence when set.
• Add support to images for option dependencies declared with the `import option` syntax in
edition 2024 and later.
• Add support for Protobuf edition 2026.
• Update built-in Well-Known Types to Protobuf v36.2.
• Update managed mode to skip `cc_enable_arenas` for edition 2026 files, where the option was
removed.
• Fix `buf convert` and `buf curl` ignoring the `(pb.enumvalue.json).string` option for enum
value JSON names.