feat(sdk): add changelog file (#7499)

.github/pull_request_template.md

@@ -16,6 +16,7 @@ Please include a summary of the change and which issue is fixed. List any depend
 - [ ] Review if code is being documented following this specification https://github.com/google/styleguide/blob/gh-pages/pyguide.md#38-comments-and-docstrings
 - [ ] Review if backport is needed.
 - [ ] Review if is needed to change the [Readme.md](https://github.com/prowler-cloud/prowler/blob/master/README.md)
+- [ ] Ensure new entries are added to [CHANGELOG.md](https://github.com/prowler-cloud/prowler/blob/master/prowler/CHANGELOG.md), if applicable.
 
 #### API
 - [ ] Verify if API specs need to be regenerated.

prowler/CHANGELOG.md

@@ -0,0 +1,13 @@
+# Prowler SDK Changelog
+
+All notable changes to the **Prowler SDK** are documented in this file.
+
+---
+
+## [v5.5.0]
+
+### Added
+
+### Fixed
+
+---