Investigate potential idempotent issue with `logs_agent_additional_metadata`

[ocofaigh]

In the obs-agent-ocp example, we tried to add a value for logs_agent_additional_metadata but it seems the idempotent check fails with below error. For now, its commented out, but we need to revisit incase we have a bug in our logs...

Messages:   	Resource(s) identified to be updated 
        	            	Name: logs_agent
        	            	Address: module.observability_agents.module.logs_agent[0].helm_release.logs_agent
        	            	Actions: [update]
        	            	DIFF:
        	            	  Before: 
        	            		{"metadata":"SECURE_VALUE_HIDDEN_HASH:-a56d8e5a96dbea9d2d3b07cc5c98e11322000c31fee4ed8f98579a96","values":"SECURE_VALUE_HIDDEN_HASH:-a0057eeaeefae7358c096fe33d122217ed8785b3ffa5f5413[5428](https://github.com/terraform-ibm-modules/terraform-ibm-observability-agents/actions/runs/11145252646/job/30974656741#step:7:5428)cdd"}
        	            	  After: 
        	            		{}

[ocofaigh]

Never mind, had to add module.observability_agents.module.logs_agent[0].helm_release.logs_agent to the ignore update list