release/1.4.0

What's Changed

• removing cabal workflow by @stew in #6245
• Cap negotiation at 200 entities. by @ChrisPenner in #6242
• Fewer locks for ucm run by @ChrisPenner in #6244
• minor mcp note tweaks for antigravity by @bbarker in #6237
• Update dev environment by @sellout in #6252
• Fix record accessors for higher-rank field types by @runarorama in #6239
• Introduce run> watch expressions by @dfreeman in #6256
• fix: correctly report the number of remaining tests for io tests by @etorreborre in #6263
• Allow disabling codebase locks by @ChrisPenner in #6260
• Add missing type decls when merging by @ChrisPenner in #6264

Full Changelog: release/1.3.0...release/1.4.0