Hono 4.12.19 release notes

ci: pin GitHub Actions to SHAs by @yusukebe in https://github.com/honojs/hono/pull/4932
fix(serveStatic): make options parameter optional in all adapters by @mixelburg in https://github.com/honojs/hono/pull/4934
fix(cookie): return the first cookie when there are multiple cookies with the same name by @usualoma in https://github.com/honojs/hono/pull/4922
feat(bearer-auth): make bearerAuth generic for typed context in verifyToken by @justinnais in https://github.com/honojs/hono/pull/4913
feat(cache): key cache entries by configured vary headers by @usualoma in https://github.com/honojs/hono/pull/4915
feat(request): add bytes() by @yusukebe in https://github.com/honojs/hono/pull/4921
fix(stream): upgrade @hono/node-server to v2 and fix abort handling by @yusukebe in https://github.com/honojs/hono/pull/4940

Full Changelog: https://github.com/honojs/hono/compare/v4.12.18...v4.12.19