Fix otel queries metrics to match OTEL spec

[YANG-DB]

Description

Update metrics analytics queries to match the SS40 metrics schema according to OTEL spec

Issues Resolved

[List any issues this PR will resolve]

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[joshuali925]

would this break for users using previous mapping with .keyword?

[opensearch-trigger-bot]

The backport to 2.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/dashboards-observability/backport-2.x 2.x
# Navigate to the new working tree
pushd ../.worktrees/dashboards-observability/backport-2.x
# Create a new branch
git switch --create backport/backport-1818-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 55841f24cd647c8ceedfa36a2d62763fa3ccd57a
# Push it to GitHub
git push --set-upstream origin backport/backport-1818-to-2.x
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/dashboards-observability/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-1818-to-2.x.

[opensearch-trigger-bot]

The backport to 2.14 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/dashboards-observability/backport-2.14 2.14
# Navigate to the new working tree
pushd ../.worktrees/dashboards-observability/backport-2.14
# Create a new branch
git switch --create backport/backport-1818-to-2.14
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 55841f24cd647c8ceedfa36a2d62763fa3ccd57a
# Push it to GitHub
git push --set-upstream origin backport/backport-1818-to-2.14
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/dashboards-observability/backport-2.14

Then, create a pull request where the base branch is 2.14 and the compare/head branch is backport/backport-1818-to-2.14.