fix: upgrade Cosign to v2

[suzuki-shunsuke]

• Upgrade Cosign to v2.0 #1665

[suzuki-shunsuke]

Release failed.

https://github.com/aquaproj/aqua/actions/runs/8353771292/job/22866035480?pr=2757

GoReleaser ran cosign sign-blob.

aqua/.goreleaser.yml

Lines 28 to 44 in 74a0c86

	signs:
	- cmd: cosign
	artifacts: checksum
	signature: ${artifact}.sig
	certificate: ${artifact}.pem
	output: true
	env:
	- COSIGN_EXPERIMENTAL=1
	args:
	- sign-blob
	- --output-signature
	- ${signature}
	- --output-certificate
	- ${certificate}
	- --oidc-provider
	- github
	- ${artifact}

The sigstore service, hosted by sigstore a Series of LF Projects, LLC, is provided pursuant to the Hosted Project Tools Terms of Use, available at https://lfprojects.org/policies/hosted-project-tools-terms-of-use/.
	Note that if your submission includes personal data associated with this signed artifact, it will be part of an immutable record.
	This may include the email address associated with the account with which you authenticate your contractual Agreement.
	This information will be used for signing this artifact and will be stored in public transparency logs and cannot be removed later, and is subject to the Immutable Record notice at https://lfprojects.org/policies/hosted-project-tools-immutable-records/.

By typing 'y', you attest that (1) you are not submitting the personal data of any other person; and (2) you understand and agree to the statement and the Agreement terms at the URLs listed above.
Are you sure you would like to continue? [y/N] Error: signing dist/aqua_2.25.1-1_checksums.txt: upload to tlog: user declined the prompt
main.go:74: error during command execution: signing dist/aqua_2.25.1-1_checksums.txt: upload to tlog: user declined the prompt
  ⨯ release failed after 1m58s               error=sign: cosign failed: exit status 1: Using payload from: dist/aqua_2.25.1-1_checksums.txt
Generating ephemeral keys...
Retrieving signed certificate...
Successfully verified SCT...

	The sigstore service, hosted by sigstore a Series of LF Projects, LLC, is provided pursuant to the Hosted Project Tools Terms of Use, available at [https://lfprojects.org/policies/hosted-project-tools-terms-of-use/.](https://lfprojects.org/policies/hosted-project-tools-terms-of-use/)
	Note that if your submission includes personal data associated with this signed artifact, it will be part of an immutable record.
	This may include the email address associated with the account with which you authenticate your contractual Agreement.
	This information will be used for signing this artifact and will be stored in public transparency logs and cannot be removed later, and is subject to the Immutable Record notice at [https://lfprojects.org/policies/hosted-project-tools-immutable-records/.](https://lfprojects.org/policies/hosted-project-tools-immutable-records/)

By typing 'y', you attest that (1) you are not submitting the personal data of any other person; and (2) you understand and agree to the statement and the Agreement terms at the URLs listed above.
Are you sure you would like to continue? [y/N] Error: signing dist/aqua_2.25.1-1_checksums.txt: upload to tlog: user declined the prompt
main.go:74: error during command execution: signing dist/aqua_2.25.1-1_checksums.txt: upload to tlog: user declined the prompt

Error: Process completed with exit code 1.

cosign sign-blob --help

    -y, --yes=false:
	skip confirmation prompts for non-destructive operations