Cherry-pick #5523 #5540 #5558 #5571#5573

t-kikuc merged 4 commits intorelease-v0.50.xpipe-cd/pipecd:release-v0.50.xfrom

cherry-pick-#5523-#5540-#5558-#5571-to-release-v0.50.xpipe-cd/pipecd:cherry-pick-#5523-#5540-#5558-#5571-to-release-v0.50.xCopy head branch name to clipboard