repo: run codespell

Run codespell and replace known misspelling.

Signed-off-by: Nicola Mazzucato <nicola.mazzucato@arm.com>
Change-Id: I6bfcf67b27745c98059a433c929af637f9a02d8e
diff --git a/tfm_ci_pylib/structured_task.py b/tfm_ci_pylib/structured_task.py
index 5e44481..80119d9 100644
--- a/tfm_ci_pylib/structured_task.py
+++ b/tfm_ci_pylib/structured_task.py
@@ -2,7 +2,7 @@
 
 """ structured_task.py:
 
-    A generic abstraction class for executing a task with prerequesites and
+    A generic abstraction class for executing a task with prerequisites and
     post execution action """
 
 from __future__ import print_function
@@ -62,7 +62,7 @@
 
     @abc.abstractmethod
     def pre_exec(self, eval_ret):
-        """ Tasks that set-up execution enviroment """
+        """ Tasks that set-up execution environment """
 
     @abc.abstractmethod
     def task_exec(self):