Update .gitleaksignore #1406

Job	Run time
Set CI/CD metadata	8s
Commit stage / Scan secrets	7s
Commit stage / Check file format	6s
Commit stage / Check for changes to event schema package compared to main branch	4s
Commit stage / Check Markdown format	9s
Commit stage / Check TODO usage	4s
Commit stage / Check English usage	7s
Commit stage / Scan dependencies	23s
Commit stage / Detect Terraform Changes	6s
Commit stage / Count lines of code	7s
Commit stage / Check event schemas have been regenerated	0s
Commit stage / Check event schema version has been updated	0s
Commit stage / Lint Terraform	-1s
Commit stage / Trivy Scan	-1s
Commit stage / Run terraform-docs	-1s
Test stage	0s
Publish stage	0s
Build stage	-1s
Acceptance stage	-1s
	1m 16s

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