feat: Update S3FileSystem to support readable proxy URLs and allow acl to be null

This commit introduces updates to the S3FileSystem to support readable proxy URLs and allows the acl parameter to be set to null. This change addresses issues where certain storage systems would throw errors if an unsupported header value was provided. Additionally, a new `$readableProxyUrl` property has been added to improve the management and readability of proxy URLs.

Author: nadar

CHANGELOG.md

@@ -5,8 +5,8 @@ In order to read more about upgrading and BC breaks have a look at the [UPGRADE
 
 ## 1.7.0 (3. July 2024)
 
-+ Allow the `acl` param to be null, since certain storage system throw an error if an unsupported header value is provided.
-+ Added new `$readableProxyUrl` property.
++ The `acl` parameter can now be set to `null`. This update addresses issues where certain storage systems would throw errors if an unsupported header value was provided.
++ **Added**: Introduced a new `$readableProxyUrl` property to improve the management and readability of proxy URLs.
 
 ## 1.6.0 (12. April 2023)