Updating yarn installation step from the Dev guide

[dtaivpp]

Description

Fixes issue with yarn install step in developer guides

Issues Resolved

N/A

Screenshot

N/A

Testing the changes

@cwperks and I had run through the developer guide end to end and ran into issues with the current step but re-running with npm i -g yarn worked to install the right version of yarn so the dependencies could be installed.

Check List

• Commits are signed per the DCO using --signoff

[opensearch-trigger-bot]

The backport to 1.3 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-Dashboards/backport-1.3 1.3
# Navigate to the new working tree
pushd ../.worktrees/OpenSearch-Dashboards/backport-1.3
# Create a new branch
git switch --create backport/backport-5065-to-1.3
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 f02a88ec18168d3baf8b762f8f246424d776aa0c
# Push it to GitHub
git push --set-upstream origin backport/backport-5065-to-1.3
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/OpenSearch-Dashboards/backport-1.3

Then, create a pull request where the base branch is 1.3 and the compare/head branch is backport/backport-5065-to-1.3.

[opensearch-trigger-bot]

The backport to 2.x failed:

The process '/usr/bin/git' failed with exit code 1

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-Dashboards/backport-2.x 2.x
# Navigate to the new working tree
pushd ../.worktrees/OpenSearch-Dashboards/backport-2.x
# Create a new branch
git switch --create backport/backport-5065-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 f02a88ec18168d3baf8b762f8f246424d776aa0c
# Push it to GitHub
git push --set-upstream origin backport/backport-5065-to-2.x
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/OpenSearch-Dashboards/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-5065-to-2.x.

[joshuarrrr]

skipping backports in favor of #5067