Update vulnerabilities to use new Tool specification

[shaikhu]

According to the docs, since v1.5 the Tools format has been deprecated and a new format recommended. While the entity Metada has been updated to use the new format (new method setToolChoice), Vulnerability has not. This PR adds a similar method to Vulnerability.

[nscuro]

Thanks for the PR @shaikhu. Can you please sign-off your commits to make the DCO check happy? You can find instructions on how to do that by clicking on the Details link next to the failing build check.

[shaikhu]

Thanks for the PR @shaikhu. Can you please sign-off your commits to make the DCO check happy? You can find instructions on how to do that by clicking on the Details link next to the failing build check.

I signed-off my commits, but it looks like my email address was incorrect in my local git configt! I've since corrected it and signed-off the commits again, however DCO is still complaining about the previous/invalid email. I'll close this PR and raise another. Sorry for the hassle.

[shaikhu]

Thanks for the PR @shaikhu. Can you please sign-off your commits to make the DCO check happy? You can find instructions on how to do that by clicking on the Details link next to the failing build check.

I signed-off my commits, but it looks like my email address was incorrect! I've since corrected it and signed-off the commits, however DCO is complaining about the previous/invalid email. I'll close this and raise another PR. Sorry for the hassle.

New PR found here.