update examples #301

Job	Run time
Install existing release of Cosign and test presence in path (ubuntu-latest)	4s
Install Cosign v0.6.0 and test presence in path (macos-latest)	21s
Install Cosign v0.6.0 and test presence in path (ubuntu-latest)	19s
Install Cosign v0.6.0 and test presence in path (windows-latest)	17s
Install Cosign and test presence in path (macos-latest)	11s
Install Cosign and test presence in path (ubuntu-latest)	5s
Install Cosign and test presence in path (windows-latest)	15s
Install Custom Cosign and test presence in path (macos-latest)	17s
Install Custom Cosign and test presence in path (ubuntu-latest)	9s
Install Custom Cosign and test presence in path (windows-latest)	26s
Install Cosign v0.6.0 and test presence in path with pre installed libpcsclite1 package (ubuntu-l...	23s
Install Custom Cosign and test presence in path with custom root dir (ubuntu-latest)	5s
Install Custom Cosign and test presence in path (macos-latest)	10s
Install Custom Cosign and test presence in path (ubuntu-latest)	6s
Install Custom Cosign and test presence in path (windows-latest)	44s
Try to install a wrong Cosign (macos-latest)	8s
Try to install a wrong Cosign (ubuntu-latest)	3s
Try to install a wrong Cosign (windows-latest)	10s
Try to install cosign with go 1.19	3m 14s
Try to install cosign with go 1.20	3m 41s
Try to install cosign with go 1.19	2m 42s
Try to install cosign with go 1.20	2m 58s
Try to install cosign with go 1.19	8m 59s
Try to install cosign with go 1.20	9m 17s
	35m 4s

Provide feedback