Fix CI: Correctly validate

src/main/python/ddadevops/application/release_mixin_services.py

@@ -10,8 +10,7 @@ class PrepareReleaseService():
         self.git_api = GitApi()
 
     def __write_and_commit_version(self, version: Version, commit_message: str):
-        # TODO: isValid is missing
-        self.release.validate(self.release_repo.main_branch)
+        self.release.is_valid(self.release_repo.main_branch)
 
         self.release_repo.version_repository.write_file(version.get_version_string())
         self.git_api.add_file(self.release_repo.version_repository.file)
@@ -33,8 +32,7 @@ class TagAndPushReleaseService():
     def tag_release(self):
         annotation = 'v' + self.release.version.get_version_string()
         message = 'Release ' + annotation
-        # TODO: Why is the count a parameter? We always tag the second last commit in this process.
-        self.git_api.tag_annotated(annotation, message, 1)
+        self.git_api.tag_annotated_second_last(annotation, message)
 
     def push_release(self):
         self.git_api.push()