Run codespell on code

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

contrib/cirrus/CIModes.md

@@ -19,7 +19,7 @@ outdated) example of it's output can be seen below:
   While it's arguably easier to read that `only_if`, it leads to a cluttered
   status output that's harder to page through when reviewing PRs.  As opposed
   to `only_if` which will bypass creation of the task (at runtime) completely.
-  Also, by sticking to one conditional style, it's easier to re-use the YAML
+  Also, by sticking to one conditional style, it's easier to reuse the YAML
   statements across multiple tasks.
 
 + The only variables which can be used as part of conditions are defined by

contrib/cirrus/mac_env.sh

@@ -4,7 +4,7 @@ set -euo pipefail
 
 # This script is intended to be called by Cirrus-CI on a Mac M1 persistent worker.
 # It runs /after/ `mac_setup.sh` to help developers debug any environment
-# related issues.  It must not make any actualy changes to the environment.
+# related issues.  It must not make any actually changes to the environment.
 
 # Many variables can affect operations, make them all known to assist debugging.
 echo "Selection of current env. vars:"