ci: Check spelling with codespell

* You can ignore words inline by adding a comment like `# codespell:ignore word`.
* You can ignore words by adding them to the `.codespell_ignores` file.
* You can ignore files and directories by adding them with `skip = ` to the `.codespellrc` file.

Signed-off-by: Sergei Petrosian <spetrosi@redhat.com>

.codespellrc

@@ -0,0 +1,8 @@
+[codespell]
+check-hidden = true
+# Note that `-w` doesn't work when ignore-multiline-regex is set
+# https://github.com/codespell-project/codespell/issues/3642
+ignore-multiline-regex = codespell:ignore-begin.*codespell:ignore-end
+ignore-words = .codespell_ignores
+# skip-file is not available https://github.com/codespell-project/codespell/pull/2759
+skip = .README.html