Added release drafter for one click release of SDK

[owaiskazi19]

Description

This PR adds a release drafter required for 1-click-release-process.

• Tested the workflow here and published a release on fork here.
• Created a new task in gradle to fetch the version in release-drafter.

Issues Resolved

Part of #836

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[owaiskazi19]

Let's wait for @gaiksaya to review before we merge this.

[gaiksaya]

LGTM! Will work on adding other elements of the release process.
Thanks!

[opensearch-trigger-bot]

The backport to 1.x failed:

The process '/usr/bin/git' failed with exit code 128

To backport manually, run these commands in your terminal:

# Navigate to the root of your repository
cd $(git rev-parse --show-toplevel)
# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add ../.worktrees/opensearch-sdk-java/backport-1.x 1.x
# Navigate to the new working tree
pushd ../.worktrees/opensearch-sdk-java/backport-1.x
# Create a new branch
git switch --create backport/backport-837-to-1.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 0322b33b40b8bbb0584c10126cc9089ba8d1347f
# Push it to GitHub
git push --set-upstream origin backport/backport-837-to-1.x
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/opensearch-sdk-java/backport-1.x

Then, create a pull request where the base branch is 1.x and the compare/head branch is backport/backport-837-to-1.x.