Replacement for deprecated requireKeytar property in Zowe v3

[t1m0thyj]

In Zowe v2, the IProfOpts.requireKeytar property passed on the ProfileInfo constructor was deprecated:

  const profInfo = new ProfileInfo("zowe", {
    requireKeytar: () => require("@zowe/secrets-for-zowe-sdk").keyring,
  });

When migrating to Zowe v3 (@zowe/cli@8), the replacement is to use IProfOpts.credMgrOverride instead:

  const requireKeytar = () => require("@zowe/secrets-for-zowe-sdk").keyring;
  const profInfo = new ProfileInfo("zowe", {
    credMgrOverride: ProfileCredentials.defaultCredMgrWithKeytar(requireKeytar),
  });

Note: ProfileCredentials is a class that can be imported from the Imperative SDK like ProfileInfo.

This change was made to support other credential managers like the CLI plugin and VS Code extension for Kubernetes Secrets.