Remove revoked agent tokens from API's

What does this MR do and why?

This excludes the revoked agent tokens from both the REST and GraphQL APIs. In detail, that means:

GraphQL API

Query	Change
ClusterAgent.tokens	The resulting list only includes active agent tokens

REST API

Command	Endpoint	Change
List Tokens	GET /projects/:id/cluster_agents/:agent_id/tokens	The resulting list only includes active agent tokens
Get Token	GET /projects/:id/cluster_agents/:agent_id/tokens/:token_id	Returns a 404 if the agent token specified is revoked

Issue: #382131 (closed)

Deprecation Issue (released in %15.8): #382129 (closed)

Screenshots or screen recordings

Setup

List of Agent Tokens with one revoked token

Tests

GraphQL API

Query	Screenshot
ClusterAgent.tokens

REST API

Command	Screenshot
List Tokens
Get Token (Active)
Get Token (Revoked)

How to set up and validate locally

Setup

1. In an example project, navigate to Infrastructure -> Kubernetes clusters and register a new agent (there is no need to connect to a K8s cluster as we are just testing the tokens)
2. Navigate to the new Agent's page, and go to the Agent Tokens tab
3. Create several tokens, and revoke and of the token

Test

UI

Reload the Agent Tokens page in the setup, and verify that the revoked agent tokens are not displayed

API

Run the following commands in the terminal.

• REST API - List Agent Tokens

  curl -k -X GET \
  --header "Authorization: Bearer $PERSONAL_ACCESS_TOKEN" \
  "https://gdk.test:3443/api/v4/projects/:project_id/cluster_agents/:agent_id/tokens" \
  | json_pp -json_opt pretty,canonical

• REST API - Get Agent Token

  curl -k -X GET \
  --header "Authorization: Bearer $PERSONAL_ACCESS_TOKEN" \
  "https://gdk.test:3443/api/v4/projects/:project_Id/cluster_agents/:agent_id/tokens/:token_id" \
  | json_pp -json_opt pretty,canonical

• GraphQL API - ClusterAgent.tokens

  curl "https://gdk.test:3443/api/graphql" \
  -k -X POST \
  --header "Authorization: Bearer $PERSONAL_ACCESS_TOKEN" \
  --header "Content-Type: application/json" \
  --data "{\"query\": \"query {project(fullPath: \\\"<project-full-path>\\\") {name clusterAgent(name: \\\"<agent-name>\\\") {name tokens {nodes {id name status}}}}}\"}" \
  | json_pp -json_opt pretty,canonical

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.