Adding changelog entry

Author: KoenZomers

CHANGELOG.md

@@ -111,6 +111,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Added `ListsShowHeaderAndNavigation` parameter to always show lists with site elements intact when specified in `Set-PnPTenantSite` and `Set-PnPSite` cmdlets. [#3233](https://github.com/pnp/powershell/pull/3233)
 - Added `-AzureADWorkloadIdentity` parameter to `Connect-PnPOnline` cmdlet to support Azure AD Workload Identity authentication. [#3097](https://github.com/pnp/powershell/pull/3097)
 - Added Managed identity support for Power Platform related cmdlets. [#3097](https://github.com/pnp/powershell/pull/3097)
+- Added `-ShowInPublishDate` parameter to `Set-PnPPage` to allow the publication date to be shown or hidden on a page [#3417](https://github.com/pnp/powershell/pull/3417)
 
 ### Fixed