Hono 4.11.6 release notes

refactor: use unique symbol for more accurate typing. by @usualoma in https://github.com/honojs/hono/pull/4651
docs: align CODE_OF_CONDUCT.md wording with Contributor Covenant by @sano-suguru in https://github.com/honojs/hono/pull/4630
fix(sse): handle \r and \r\n line endings in writeSSE by @AprilNEA in https://github.com/honojs/hono/pull/4644
feat(bun): export getBunServer by @artemtam in https://github.com/honojs/hono/pull/4626

Full Changelog: https://github.com/honojs/hono/compare/v4.11.5...v4.11.6