Disable 3.0.0-alpha1 builds and remove ppc64le from Ubuntu due to awscliv2 lacks support (#5366)

Signed-off-by: Peter Zhu <zhujiaxi@amazon.com>

Author: peterzhuamazon

docker/ci/dockerfiles/current/build.ubuntu2404.opensearch.x64.arm64.ppc64le.dockerfile docker/ci/dockerfiles/current/build.ubuntu2404.opensearch.x64.arm64.dockerfile

@@ -25,8 +25,6 @@ pipeline {
         parameterizedCron '''
             H 1 * * * %INPUT_MANIFEST=2.20.0/opensearch-dashboards-2.20.0.yml;TARGET_JOB_NAME=distribution-build-opensearch-dashboards;BUILD_PLATFORM=linux windows;BUILD_DISTRIBUTION=tar rpm deb zip;
             H 1 * * * %INPUT_MANIFEST=2.20.0/opensearch-2.20.0.yml;TARGET_JOB_NAME=distribution-build-opensearch;BUILD_PLATFORM=linux windows;BUILD_DISTRIBUTION=tar rpm deb zip
-            H 3 * * * %INPUT_MANIFEST=3.0.0-alpha1/opensearch-3.0.0-alpha1.yml;TARGET_JOB_NAME=distribution-build-opensearch;BUILD_PLATFORM=linux windows;BUILD_DISTRIBUTION=tar rpm deb zip
-            H 3 * * * %INPUT_MANIFEST=3.0.0-alpha1/opensearch-dashboards-3.0.0-alpha1.yml;TARGET_JOB_NAME=distribution-build-opensearch-dashboards;BUILD_PLATFORM=linux windows;BUILD_DISTRIBUTION=tar rpm deb zip
             H 6 * * * %INPUT_MANIFEST=3.0.0-beta1/opensearch-3.0.0-beta1.yml;TARGET_JOB_NAME=distribution-build-opensearch;BUILD_PLATFORM=linux windows;BUILD_DISTRIBUTION=tar rpm deb zip;UPDATE_GITHUB_ISSUE=false
             H 6 * * * %INPUT_MANIFEST=3.0.0-beta1/opensearch-dashboards-3.0.0-beta1.yml;TARGET_JOB_NAME=distribution-build-opensearch-dashboards;BUILD_PLATFORM=linux windows;BUILD_DISTRIBUTION=tar rpm deb zip;UPDATE_GITHUB_ISSUE=false
         '''