[RELEASE] Bugfix release

What's Changed

• [BUGFIX] Fixes flushAllUrls for CloudflareProxyProvider by @DenisMir in #22
• [TASK] Set correct constraints in ext_emconf.php by @helsner in #26
• [BUGFIX] PHP 8 Array Access by @achimfritz in #27
• [BUGFIX] Use correct guzzle handler by @Didstriker in #24
• [BUGFIX] Purge only related urls and not all urls from cache (#29) by @mvoehringer in #28
• [BUGFIX] Remove assetcollector URLs collections by @bmack in #30

New Contributors

• @DenisMir made their first contribution in #22
• @helsner made their first contribution in #26
• @Didstriker made their first contribution in #24
• @mvoehringer made their first contribution in #28

Full Changelog: v3.3.0...v3.4.0