Include `null` in return type of `Closure::bindTo()` and `Closure::bind()` dynamic return type extensions #13984

	# https://help.github.com/en/categories/automating-your-workflow-with-github-actions

	name: "Spelling"

	on:
	pull_request:
	push:
	branches:
	- "2.1.x"

	permissions:
	contents: read

	jobs:
	typos:
	name: "Check for typos"
	runs-on: "ubuntu-latest"

	steps:
	- name: Harden the runner (Audit all outbound calls)
	uses: step-security/harden-runner@5ef0c079ce82195b2a36a210272d6b661572d83e # v2.14.2
	with:
	egress-policy: audit

	- name: "Checkout"
	uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1

	- name: "Check for typos"
	uses: "crate-ci/typos@57b11c6b7e54c402ccd9cda953f1072ec4f78e33" # v1.43.5
	with:
	files: "README.md src/"

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