Add bundler audit ignore file #207

Job	Run time
test / minitest	6m 1s
lint / lint	1m 11s
build-int / build	7m 20s
build-pude-int / build	0s
build-prod / build	0s
build-pude / build	0s
sbom-int / generate-and-push-sbom	34s
	15m 6s

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