Add v7.13.6 to CHANGELOG.md [skip ci]

CHANGELOG.md

@@ -19,6 +19,15 @@ See [`eslint-plugin-babel`'s releases](https://github.com/babel/eslint-plugin-ba
 
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+## v7.13.6 (2021-02-23)
+
+#### :bug: Bug Fix
+* `babel-plugin-transform-runtime`, `babel-runtime-corejs2`, `babel-runtime-corejs3`, `babel-runtime`
+  * [#12877](https://github.com/babel/babel/pull/12877) Define fallback `exports` for `@babel/runtime` on old Node ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :house: Internal
+* `babel-compat-data`, `babel-preset-env`
+  * [#12850](https://github.com/babel/babel/pull/12850) Update compat table ([@JLHwung](https://github.com/JLHwung))
 ## v7.13.5 (2021-02-23)
 
 #### :bug: Bug Fix