Fleet provisioning winsim demo - fix warnings and reduce demo path length (FreeRTOS#1222)

* Rename .\FreeRTOS-Plus\Demo\AWS\Fleet_Provisioning_Windows_Simulator\Fleet_Provisioning_With_CSR_Demo\ to .\FreeRTOS-Plus\Demo\AWS\Fleet_Provisioning_Windows_Simulator\CSR_Demo\ to reduce path length limit on Windows (260)

* Fix warnings in fleet provisioning demo

* Update path in CI actions script

* Fix formatting

Author: tony-josi-aws

.github/workflows/freertos_plus_demos.yml

@@ -956,7 +956,7 @@ jobs:
       - env:
           stepName: Build AWS IoT Fleet Provisioning Demo
         name: ${{ env.stepName }}
-        working-directory: FreeRTOS-Plus/Demo/AWS/Fleet_Provisioning_Windows_Simulator/Fleet_Provisioning_With_CSR_Demo
+        working-directory: FreeRTOS-Plus/Demo/AWS/Fleet_Provisioning_Windows_Simulator/CSR_Demo
         run: |
           # ${{ env.stepName }}
           echo "::group::${{ env.stepName }}"