ci: use OIDC role secret for OIDC role in workflows (#1062)

* ci: use OIDC role secret for OIDC role in workflows

Author: dhanikaa

.github/workflows/test.yml

@@ -23,7 +23,7 @@ jobs:
         with:
           aws-region: us-east-1
           role-session-name: h2o-llmstudio-enterprise-ec2
-          role-to-assume: arn:aws:iam::870498644798:role/GitHub-OIDC-Role
+          role-to-assume: ${{ secrets.GH_OIDC_ROLE_LLM_STUDIO_ENTERPRISE }}
 
       - name: Start EC2 runner
         id: start-ec2-runner
@@ -80,7 +80,7 @@ jobs:
         with:
           aws-region: us-east-1
           role-session-name: h2o-llmstudio-enterprise-ec2
-          role-to-assume: arn:aws:iam::870498644798:role/GitHub-OIDC-Role
+          role-to-assume: ${{ secrets.GH_OIDC_ROLE_LLM_STUDIO_ENTERPRISE }}
       - name: Stop EC2 runner
         uses: machulav/ec2-github-runner@v2.3.8
         with:

.github/workflows/test_ui.yml

@@ -23,7 +23,7 @@ jobs:
         with:
           aws-region: us-east-1
           role-session-name: h2o-llmstudio-ec2
-          role-to-assume: arn:aws:iam::870498644798:role/GitHub-OIDC-Role
+          role-to-assume: ${{ secrets.GH_OIDC_ROLE_LLM_STUDIO_ENTERPRISE }}
 
       - name: Start EC2 runner
         id: start-ec2-runner
@@ -80,11 +80,11 @@ jobs:
         with:
           aws-region: us-east-1
           role-session-name: h2o-llmstudio-ec2
-          role-to-assume: arn:aws:iam::870498644798:role/GitHub-OIDC-Role
+          role-to-assume: ${{ secrets.GH_OIDC_ROLE_LLM_STUDIO_ENTERPRISE }}
       - name: Stop EC2 runner
         uses: machulav/ec2-github-runner@v2.3.8
         with:
           mode: stop
           github-token: ${{ secrets.GH_RUNNER_PAT }}
           label: ${{ needs.start-runner.outputs.label }}
-          ec2-instance-id: ${{ needs.start-runner.outputs.ec2-instance-id }}
+          ec2-instance-id: ${{ needs.start-runner.outputs.ec2-instance-id }}