Provide full paths when verifying contents of keystore

[auslaner]

Updates check of keystore with sudo and full paths to the keytool and the keystore file.

This change seems to make things more consistent with the previous commands. Also if you try this command without sudo included, the user may get the error Keystore file does not exist which is confusing. The previous command includes sudo so it makes sense to include it here as well.

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[auslaner]

run docs-build

[shainaraskas]

run docs-build

[shainaraskas]

hey @auslaner - I just realized that you made this change against 8.16. the change should be made against main and then backported instead.

[shainaraskas]

as mentioned above

[mergify]

This pull request is now in conflict. Could you fix it @auslaner? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch <remote-repo>
git checkout -b patch-1 <remote-repo>/patch-1
git merge <remote-repo>/main
git push <remote-repo> patch-1

[mergify]

This pull request does not have a backport label. Could you fix it @auslaner? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-/d./d is the label to automatically backport to the /d./d branch. /d is the digit
  NOTE: backport-skip has been added to this pull request.