chore(deps): update actions/cache action to v4.2.1 #1653

Job	Run time
check-diff	3s
terraform-fmt	6s
tflint	6s
terraform-plan (cdn.koyashiro.net)	23s
terraform-validate (cdn.koyashiro.net)	8s
terraform-plan (vpm.koyashiro.net)	13s
terraform-validate (vpm.koyashiro.net)	12s
terraform-plan (koyashi.ro)	23s
trivy	20s
terraform-validate (koyashi.ro)	14s
terraform-plan (koyashiro.com)	12s
terraform-validate (koyashiro.com)	7s
terraform-plan (koyashiro.dev)	12s
terraform-validate (koyashiro.dev)	8s
terraform-plan (koyashiro.jp)	12s
terraform-validate (koyashiro.jp)	8s
terraform-plan (koyashiro.live)	15s
terraform-validate (koyashiro.live)	9s
terraform-plan (koyashiro.me)	14s
terraform-validate (koyashiro.me)	14s
terraform-plan (koyashiro.net)	15s
terraform-validate (koyashiro.net)	12s
terraform-plan (koyashiro.sh)	12s
terraform-validate (koyashiro.sh)	14s
terraform-apply (${{ matrix.dir }})	0s
	4m 52s

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