chore(CHANGELOG): add changelogs for v2.5.0

[shubham14bajpai]

Signed-off-by: shubham shubham.bajpai@mayadata.io

What this PR does?:
This PR adds changelogs for v2.5.0

Does this PR require any upgrade changes?:

If the changes in this PR are manually verified, list down the scenarios covered::

Any additional information for your reviewer? :
Mention if this PR is part of any design or a continuation of previous PRs

Checklist:

• Fixes #
• PR Title follows the convention of <type>(<scope>): <subject>
• Has the change log section been updated?
• Commit has unit tests
• Commit has integration tests
• (Optional) Are upgrade changes included in this PR? If not, mention the issue/PR to track:
• (Optional) If documentation changes are required, which issue on https://github.com/openebs/openebs-docs is used to track them:

[codecov-io]

Codecov Report

Merging #10 (6943b76) into develop (46c1218) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop      #10   +/-   ##
========================================
  Coverage    88.12%   88.12%           
========================================
  Files           15       15           
  Lines         1373     1373           
========================================
  Hits          1210     1210           
  Misses         132      132           
  Partials        31       31           

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