remove aws ssm and creds dirs

Author: Akshat0694

README.md

@@ -176,6 +176,5 @@ To revert you can just run:
 - If the registration was successful but you can't see Ping Status and IP Address for the Runner on StackGuardian Platform inside the Runner Group's -> Runner Instances tab please re-register runner using the following command:
     ```bash
     ./main.sh deregister --sg-node-token "TOKEN" --organization "ORG" --runner-group "RUNNER_GROUP" && \
-    rm -rf /var/lib/amazon/ssm/ ~/.aws/credentials && \
     ./main.sh register --sg-node-token "TOKEN" --organization "ORG" --runner-group "RUNNER_GROUP"
     ```

main.sh

@@ -614,9 +614,14 @@ clean_local_setup() { #{{{
     ./aws-credentials \
     ./db-state \
     /var/log/registration \
-    ./ssm-binaries >&/dev/null
+    ./ssm-binaries \
+    /var/lib/amazon/ssm \
+    /root/.aws/credentials >&/dev/null
   clean_cron
 
+  # Wait for AWS SSM Managed Instance to deregister on AWS side
+  sleep 10s
+
   return 0
 }
 #}}}: clean_local_setup