Run CSpell on all files when CSpell-related files change

I thought that this was fixed but on doing some research I see that I did an incorrect reroll at #3328741-28: Add a dictionary for Drupal-specific words → .

+++ b/core/scripts/dev/commit-code-check.sh
@@ -176,7 +176,7 @@
-  if [[ $FILE == "core/misc/cspell/dictionary.txt" || $FILE == "core/.cspell.json" ]]; then
+  if [[ $FILE == "core/misc/cspell/dictionary.txt" || $FILE == "core/misc/cspell/drupal-dictionary.txt" ]]; then

The error was to remove the check on core/.cspell.json. That should be restored.

Anything else?

Unsure if this issue is still valid/needed?

I think we need to spell check core when "core/.cspell.json" changes, which isn't currently done.