Release 1.4.0

What's Changed:

• fix(guzzle): end span when Client::transfer() throws synchronously by @andreicodrutonofrei-sketch in 629
• Revert "chore(deps): update dependency psalm/plugin-phpunit to ^0.20.0 (#532)" by @ChrisLightfootWild in 600
• chore(deps): update dependency vimeo/psalm to v6.16.1 by @renovate[bot] in 543
• chore(deps): update dependency psalm/plugin-phpunit to ^0.20.0 by @renovate[bot] in 532

Full Changelog: 1.3.0...1.4.0