docs: add default value for is nullable switch #2917

	# Need a GitHub Advanced Security license to run this action on private repos.

	name: Dependency Review
	on:
	pull_request:
	types: [opened, edited, reopened, synchronize]

	permissions:
	contents: read

	jobs:
	dependency-review:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Repository
	uses: actions/checkout@v4
	- name: Dependency Review
	uses: actions/dependency-review-action@v4
	with:
	# Possible values: critical, high, moderate, low
	fail-on-severity: critical

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