Update CHANGELOG link to point to 5.4.0-develop branch

The CHANGELOG.md link in plugin.xml was updated to reference the 5.4.0-develop branch instead of the master branch. This ensures the link directs users to the correct version-specific change logs.

Merge pull request #2365 from perfcom/backport-theme-regex-support-da…

…shes

Backport: Update RegExUtil.java to 5.3.1

Merge pull request #2194 from vitaliyboykocontributor/5_3_0_pre_release

Add v5.3.0 changes to CHANGELOG.md

Merge pull request #2072 from piotrkwiecinski/fix-action-update-threa…

…d-deprecation

Fix action update thread deprecation

Merge pull request #1532 from magento/1517-Custom_theme_couldn't_be_d…

…etected

1517: Custom theme couldn't be detected - fix

Merge pull request #1471 from magento/5.1.0-compatibility-fixes

5.1.0 - additional compatibility fixes

Merge pull request #1278 from magento/1277-fixed-missing-import

1277: fixed throwable and wrapButtonSettings function call

Merge pull request #1262 from vitaliyboykocontributor/5.0.0-pre-release

5.0.0 pre release

Merge pull request #1197 from bohdan-harniuk/1196-fix-customer-eav-at…

…tr-generation-for-M-2.4.4

1196 fix customer eav attr generation for m 2.4.4

Merge pull request #1082 from bohdan-harniuk/preparing-release-4-3-1

Preparing release 4.3.1