ci: Exclude CHANGELOG.md from codespell formatting

Author: Dzarda7

.pre-commit-config.yaml

@@ -56,7 +56,8 @@ repos:
               .+\.ioc|
               examples/stm32_example/Core/Src/(main|stm32h7xx_hal_msp|stm32h7xx_it)\.c|
               examples/stm32_example/Core/Inc/(main|stm32h7xx_hal_conf|stm32h7xx_it)\.h|
-              zephyr/Kconfig
+              zephyr/Kconfig|
+              CHANGELOG\.md
             )$
   - repo: https://github.com/executablebooks/mdformat
     rev: 0.7.22