chore: change behaviour to behavior - American English spelling (#40193)

Co-authored-by: Sharra-writes <[email protected]>

Author: clarencepenz

content/actions/reference/limits.md

@@ -15,7 +15,7 @@ shortTitle: Limits
 
 You may be rate limited by {% data variables.product.prodname_actions %} when you scale your usage. Some limits can be increased by contacting {% data variables.contact.contact_support %}.
 
-Unless otherwise stated, the expected behaviour when a limit is reached is that the workflow/job will get cancelled.
+Unless otherwise stated, the expected behavior when a limit is reached is that the workflow/job will get cancelled.
 
 These limits are subject to change.
 

content/code-security/codeql-cli/codeql-cli-manual/dataset-check.md

@@ -67,7 +67,7 @@ Select output format. Possible choices:
 
 \[Advanced] Expend extra effort to compute precise locations for
 inconsistencies. This will take more time, but may make it easier to
-debug extractor behaviour.
+debug extractor behavior.
 
 #### `--max-resolve-depth=<n>`