add changelog for v0.19.0 (Edgenesis#615)

Co-authored-by: lijundi <lijundi@edgenesis.com>

CHANGELOG/CHANGELOG-v0.19.0-zh.md

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+# 自 [v0.18.0](https://github.com/Edgenesis/shifu/releases/tag/v0.18.0) 以来的变更
+
+## 新功能 🎉
+
+## Bug 修复
+
+## 改进
+
+* 目录名称从 `testdir` 更改为 `shifudemos` by @SuperAayush in https://github.com/Edgenesis/shifu/pull/604
+* 将 sigs.k8s.io/controller-runtime 更新到 v0.15.0 by @tomqin93 in https://github.com/Edgenesis/shifu/pull/608
+* 将 demo 中的 kind 更新到 v0.19.0 以及 Kubernetes 更新到 v1.27.1 by @tomqin93 in https://github.com/Edgenesis/shifu/pull/610
+
+## 文档
+
+## 新的贡献者 🌟
+
+* @SuperAayush 在 https://github.com/Edgenesis/shifu/pull/604 做出了第一次贡献
+
+## Dependabot 自动更新 🤖
+
+* Bump golang.org/x/net from 0.9.0 to 0.10.0 by @dependabot in https://github.com/Edgenesis/shifu/pull/600
+
+**完整变更日志**: https://github.com/Edgenesis/shifu/compare/v0.18.0...v0.19.0

CHANGELOG/CHANGELOG-v0.19.0.md

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+# Changelog since [v0.18.0](https://github.com/Edgenesis/shifu/releases/tag/v0.18.0)
+
+## New Features 🎉
+
+## Bug fixes
+
+## Enhancement
+
+* fix: changed directory name from testdir to shifudemos by @SuperAayush in https://github.com/Edgenesis/shifu/pull/604
+* bump sigs.k8s.io/controller-runtime to v0.15.0 by @tomqin93 in https://github.com/Edgenesis/shifu/pull/608
+* bump kind to v0.19.0, Kubernetes to v1.27.1 in demo by @tomqin93 in https://github.com/Edgenesis/shifu/pull/610
+
+## Docs
+
+## New Contributors 🌟
+
+* @SuperAayush made their first contribution in https://github.com/Edgenesis/shifu/pull/604
+
+## Dependabot 🤖
+
+* Bump golang.org/x/net from 0.9.0 to 0.10.0 by @dependabot in https://github.com/Edgenesis/shifu/pull/600
+
+**Full Changelog**: https://github.com/Edgenesis/shifu/compare/v0.18.0...v0.19.0