Updating Webpack packages (#4639)

* Updating Webpack packages

* Changelog and readme entries

* Removing unnecessary webpack-cli package

* Putting the webpack-cli package back

* Fix webpack config

* Bumping wordress/scripts

* Reverting wordpress/scripts upgrade

* Fix pot references error

Author: wjrosa

bin/update-pot-file-references.php

@@ -89,7 +89,7 @@ function load_js_transpiling_source_maps(): array {
 		}
 
 		foreach ( $file_json[ 'sources' ] as $source ) {
-			$source = preg_replace( '%^webpack:///\./(client/.*)$%', '${1}', $source );
+			$source = preg_replace( '%^webpack://\./(client/.*)$%', '${1}', $source );
 			if ( 'webpack' !== substr( $source, 0, 7 ) ) {
 				$mappings[ $source ][] = $file_json[ 'file' ];
 			}

changelog.txt

@@ -1,6 +1,7 @@
 *** Changelog ***
 
 = 9.9.0 - xxxx-xx-xx =
+* Dev - Upgrades the Webpack-related packages
 * Dev - Adds debug information to the Payment Intent object metadata
 * Dev - Upgrade the cross-env and rimraf NPM packages; remove chromedriver NPM dependency
 * Dev - Removes three unused NPM script commands: `test`, `test:grep`, and `test:single`