[Release 3.0] Adding 3.0.0-alpha1 in manifests and Jenkins runs

[peterzhuamazon]

Description

[Release 3.0] Adding 3.0.0-alpha1 in manifests and Jenkins runs

Issues Resolved

#3747

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[peterzhuamazon]

I will fix the test soon.

[peterzhuamazon]

Instead of fixing the test I will restore the 3.0.0 folder we are fine to add a 3.0.0-alpha1 instead of renaming.

[zelinh]

Could you look into the CI failure? Seems like manifest ci check is failing with qualifier.

[peterzhuamazon]

Could you look into the CI failure? Seems like manifest ci check is failing with qualifier.

2025-01-23 00:57:45 INFO     Executing "./gradlew publishToMavenLocal -Dopensearch.version=3.0.0-alpha1-SNAPSHOT -Dbuild.snapshot=true -Dbuild.version_qualifier=alpha1" in /tmp/tmptiar_71o/common-utils
Downloading https://services.gradle.org/distributions/gradle-8.10.2-bin.zip
.............10%.............20%.............30%.............40%.............50%.............60%.............70%.............80%.............90%.............100%

Welcome to Gradle 8.10.2!

Here are the highlights of this release:
 - Support for Java 23
 - Faster configuration cache
 - Better configuration cache reports

For more details see https://docs.gradle.org/8.10.2/release-notes.html

Starting a Gradle Daemon (subsequent builds will be faster)

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.
-----------
* Where:
Build file '/tmp/tmptiar_71o/common-utils/build.gradle' line: 156

* What went wrong:
A problem occurred evaluating root project 'common-utils'.
> Could not find method shadowJar() for arguments [build_auab109pypb5ye49zkgd5auvx$_run_closure11@69772b32] on root project 'common-utils' of type org.gradle.api.Project.

The issue is not on core as core just merged the lucene 10 changes in opensearch-project/OpenSearch#16366, which passed mavenlocal. The issue is on any plugin following as they havent start support the breaking changes in core yet on main.

This means we would need to merge this PR and ignore the manifest check failures on 3.0.0-alpha1, so that we can start building min and bundle for plugin teams to pass their checks.

Since we have continue-on-error already I am ok for us to merge this without removing the plugins. Thanks.

[zelinh]

Manifest CI fails because of the recent breaking change. I don't think this should be a blocker for OS core.
Start to build on min should be a good step so far. I'm ok with this PR. Thanks.

[peterzhuamazon]

Will merge tomorrow and build 3.0.0-alpha1.

Thanks.

[peterzhuamazon]

Re-generate 3.0.0-alpha1 based on 2.19.0 to have all the exact same components and settings.

Add a warning file in 3.0.0 manifest folder as we should not touch it until GA.

Thanks.