chore: add kcl v0.7.0 change log

Signed-off-by: peefy <xpf6677@163.com>

Author: Peefy

CHANGELOG.md

@@ -1,9 +1,6 @@
 # KCL Changelog
 
-- KCL v0.7.0-beta.2 - https://github.com/kcl-lang/kcl/releases/tag/v0.7.0-beta.2
-- KCL v0.7.0-beta.1 - https://github.com/kcl-lang/kcl/releases/tag/v0.7.0-beta.1
-- KCL v0.7.0-alpha.2 - https://github.com/kcl-lang/kcl/releases/tag/v0.7.0-alpha.2
-- KCL v0.7.0-alpha.1 - https://github.com/kcl-lang/kcl/releases/tag/v0.7.0-alpha.1
+- KCL v0.7.0 - https://github.com/kcl-lang/kcl/releases/tag/v0.7.0
 - KCL v0.6.0 - https://github.com/kcl-lang/kcl/releases/tag/v0.6.0
 - KCL v0.5.6 - https://github.com/kcl-lang/kcl/releases/tag/v0.5.6
 - KCL v0.5.5 - https://github.com/kcl-lang/kcl/releases/tag/v0.5.5