Backport of Allow service identity tokens the ability to read jwt-providers into release/1.16.x

[hc-github-team-consul-core]

Backport

This PR is auto-generated from #17893 to be assessed for backporting due to the inclusion of the label backport/1.16.

🚨

Warning automatic cherry-pick of commits failed. If the first commit failed,
you will see a blank no-op commit below. If at least one commit succeeded, you
will see the cherry-picked commits up to, not including, the commit where
the merge conflict occurred.

The person who merged in the original PR is:
@roncodingenthusiast
This person should manually cherry-pick the original PR into a new backport PR,
and close this one when the manual backport PR is merged in.

merge conflict error: unable to process merge commit: "478beccf2d33953a7d03682ea78ce236ea97e6e6", automatic backport requires rebase workflow

The below text is copied from the body of the original PR.

---

Description

• This PR allows service identity tokens the ability to read jwt providers. This is necessary because before writing an intention that referenced a jwt-provider, there is a validation to ensure that jwt-provider exist.
• Prior to this PR, if the token didn't have mesh:read permission, it will not be able to access the provider hence failing to write any intentions referencing jwt providers due to the validation mentioned above

---

Overview of commits

• 72308dd - bf5d1ec - 4ca2e4b - 478becc

[github-team-consul-core-pr-approver]

Auto approved Consul Bot automated PR