Revert test branch pointer back to main

Author: Kidus Asrade

.github/workflows/integration-test.yml

@@ -13,7 +13,7 @@ env:
   ECR_INTEGRATION_TEST_REPO: "cwagent-integration-test"
   CWA_GITHUB_TEST_REPO_NAME: "aws/amazon-cloudwatch-agent-test"
   CWA_GITHUB_TEST_REPO_URL: "https://github.com/aws/amazon-cloudwatch-agent-test.git"
-  CWA_GITHUB_TEST_REPO_BRANCH: "add-ubuntu-26-support"
+  CWA_GITHUB_TEST_REPO_BRANCH: "main"
   TERRAFORM_AWS_ASSUME_ROLE_ITAR: ${{ vars.TERRAFORM_AWS_ASSUME_ROLE_ITAR }}
   S3_INTEGRATION_BUCKET_ITAR: ${{ vars.S3_INTEGRATION_BUCKET_ITAR }}
   TERRAFORM_AWS_ASSUME_ROLE_CN: ${{ vars.TERRAFORM_AWS_ASSUME_ROLE_CN }}

.github/workflows/test-artifacts.yml

@@ -16,7 +16,7 @@ env:
   ECR_INTEGRATION_TEST_REPO: "cwagent-integration-test"
   CWA_GITHUB_TEST_REPO_NAME: "aws/amazon-cloudwatch-agent-test"
   CWA_GITHUB_TEST_REPO_URL: "https://github.com/aws/amazon-cloudwatch-agent-test.git"
-  CWA_GITHUB_TEST_REPO_BRANCH: "add-ubuntu-26-support"
+  CWA_GITHUB_TEST_REPO_BRANCH: "main"
   TERRAFORM_AWS_ASSUME_ROLE_ITAR: ${{ vars.TERRAFORM_AWS_ASSUME_ROLE_ITAR }}
   S3_INTEGRATION_BUCKET_ITAR: ${{ vars.S3_INTEGRATION_BUCKET_ITAR }}
   TERRAFORM_AWS_ASSUME_ROLE_CN: ${{ vars.TERRAFORM_AWS_ASSUME_ROLE_CN }}