[integ-tests] Remove Rocky from daily integration tests

Because ParallelCluster does not release Rocky AMI, the integration tests for released version started to fail 40 days after the release, because we clean up resources older than 40 days.

This commit removes Rocky from daily integration tests. This commit is only pointed to integ-tests-3.10.1. develop and release-3.10 branch shouldn't be changed

Signed-off-by: Hanwen <hanwenli@amazon.com>

Author: hanwen-cluster

tests/integration-tests/configs/released.yaml

@@ -77,7 +77,7 @@ test-suites:
         - regions: [ "ap-northeast-2" ]
           instances: {{ common.INSTANCES_DEFAULT_X86 }}
           schedulers: ["slurm"]
-          oss: [ "rocky8", "ubuntu2204" ]
+          oss: [ "rhel8", "ubuntu2204" ]
   createami:
     test_createami.py::test_invalid_config:
       dimensions:
@@ -165,7 +165,7 @@ test-suites:
       dimensions:
         - regions: ["eu-north-1"]
           instances: {{ common.INSTANCES_DEFAULT_X86 }}
-          oss: ["rocky8"]
+          oss: ["rhel8"]
           schedulers: ["slurm"]
   pcluster_api:
     test_api_infrastructure.py::test_api_infrastructure_with_default_parameters:
@@ -208,7 +208,7 @@ test-suites:
       dimensions:
         - regions: ["ca-central-1"]
           instances: {{ common.INSTANCES_DEFAULT_X86 }}
-          oss: ["rocky9"]
+          oss: ["rhel9"]
           schedulers: ["slurm"]
     test_slurm.py::test_slurm_protected_mode:
       dimensions:
@@ -220,7 +220,7 @@ test-suites:
       dimensions:
         - regions: [ "ap-east-1" ]
           instances: {{ common.INSTANCES_DEFAULT_X86 }}
-          oss: ["rocky8"]
+          oss: ["rhel8"]
           schedulers: [ "slurm" ]
     test_slurm.py::test_slurm_memory_based_scheduling:
       dimensions: