ci: add changelog verification workflow

[vanshika622]

Fixes https://github.com/open-telemetry/opentelemetry-specification/issues/2315

Changes

• Add the workflow to verify the changes in changelog.md

Please provide a brief description of the changes here.

For non-trivial changes, follow the change proposal process.

• [x] Related issues #
• [ ] Related OTEP(s) #
• [ ] Links to the prototypes (when adding or changing features)
• [x] CHANGELOG.md file updated for non-trivial changes
• [ ] Spec compliance matrix updated if necessary

[pellared]

The new workflow does not seem to work correctly. Why not doing the same as in https://github.com/open-telemetry/opentelemetry-go/blob/main/.github/workflows/changelog.yml?

[vanshika622]

The new workflow does not seem to work correctly. Why not doing the same as in https://github.com/open-telemetry/opentelemetry-go/blob/main/.github/workflows/changelog.yml?

I implemented a custom logic to handle the changelog checks, but I agree that it’s better to follow the same conventions used across the other OpenTelemetry repositories. I will update the workflow

[pellared]

yamllint is failing https://github.com/open-telemetry/opentelemetry-specification/actions/runs/20038553862/job/57466822059?pr=4776

[vanshika622]

yamllint is failing https://github.com/open-telemetry/opentelemetry-specification/actions/runs/20038553862/job/57466822059?pr=4776

yes working on the same and some makrdown one also failing

[carlosalberto]

Let's wait for @arminru to review, and let's advertise this in our Spec call.

[vanshika622]

Let's wait for @arminru to review, and let's advertise this in our Spec call.

@carlosalberto when we have Spec call. would like to join

[pellared]

Let's wait for @arminru to review, and let's advertise this in our Spec call.

@carlosalberto when we have Spec call. would like to join

From https://github.com/open-telemetry/opentelemetry-specification/blob/main/README.md#questions:

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