feat: switch to go-task/setup-task and update shell to /bin/ash in Do… #23

Job	Run time
call / pull-request	23s
call / lint	25s
call / docker	1m 29s
call / e2e-action-commit-push / Validate workflow inputs	4s
call / e2e-action-container-structure-test	-1s
call / e2e-action-pull-request	-1s
call / e2e-action-template-action	-1s
call / e2e-action-commit-push / Commit from custom repository_path	13s
call / e2e-action-commit-push / Allow empty commit with no file changes	13s
call / e2e-action-commit-push / Reset target branch to base branch	15s
call / e2e-action-commit-push / Commit to timestamped branch name	13s
call / e2e-action-commit-push / Commit with custom prefix and message	13s
call / e2e-action-commit-push / Rebase conflict fails when fail_on_rebase_conflict=true	17s
call / e2e-action-commit-push / Amend previous commit with force-with-lease	17s
call / e2e-action-commit-push / Basic commit and push to new branch	13s
call / e2e-action-terraform-copy-vars	0s
call / e2e-action-terraform-validate	0s
call / e2e-action-tflint	0s
call / e2e-action-format-hcl	0s
	4m 12s

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