Merged PR 541: Config item that allows services and applications to return actual health states without the need to scan

## Summary
Added:
- services_requires_scan
- applications_requires_scan

To allow the agents to get the actual health state of services and applications without the need to scan

## Test process
https://dev.azure.com/ma-dev-uk/PrimAITE/_git/PrimAITE/pullrequest/541?_a=files&path=/tests/unit_tests/_primaite/_game/_agent/test_observations.py

## Checklist
- [X] PR is linked to a **work item**
- [X] **acceptance criteria** of linked ticket are met
- [X] performed **self-review** of the code
- [ ] written **tests** for any new functionality added with this PR
- [ ] updated the **documentation** if this PR changes or adds functionality
- [ ] written/updated **design docs** if this PR implements new functionality
- [X] updated the **change log**
- [X] ran **pre-commit** checks for code style
- [ ] attended to any **TO-DOs** left in the code

Related work items: #2864

tests/integration_tests/game_layer/observations/test_node_observations.py

@@ -39,6 +39,8 @@ def test_host_observation(simulation):
         folders=[],
         network_interfaces=[],
         file_system_requires_scan=True,
+        services_requires_scan=True,
+        applications_requires_scan=True,
         include_users=False,
     )
 

tests/integration_tests/game_layer/observations/test_software_observations.py

@@ -29,7 +29,9 @@ def test_service_observation(simulation):
     ntp_server = pc.software_manager.software.get("NTPServer")
     assert ntp_server
 
-    service_obs = ServiceObservation(where=["network", "nodes", pc.hostname, "services", "NTPServer"])
+    service_obs = ServiceObservation(
+        where=["network", "nodes", pc.hostname, "services", "NTPServer"], services_requires_scan=True
+    )
 
     assert service_obs.space["operating_status"] == spaces.Discrete(7)
     assert service_obs.space["health_status"] == spaces.Discrete(5)
@@ -54,7 +56,9 @@ def test_application_observation(simulation):
     web_browser: WebBrowser = pc.software_manager.software.get("WebBrowser")
     assert web_browser
 
-    app_obs = ApplicationObservation(where=["network", "nodes", pc.hostname, "applications", "WebBrowser"])
+    app_obs = ApplicationObservation(
+        where=["network", "nodes", pc.hostname, "applications", "WebBrowser"], applications_requires_scan=True
+    )
 
     web_browser.close()
     observation_state = app_obs.observe(simulation.describe_state())