Bump swiftmailer/swiftmailer to 6.3.0 in stable24#1237

PVince81 merged 1 commit intostable24nextcloud/3rdparty:stable24from

fix/bump-swiftmailer/swiftmailer-to-6.3.0-in-stable24nextcloud/3rdparty:fix/bump-swiftmailer/swiftmailer-to-6.3.0-in-stable24Copy head branch name to clipboard