Changelog (v8.0.7...v8.0.8)

• bug #63818 Ensure compatibility with Relay extension 0.21.0 (@lyrixx)
• bug #63747 Fix Psr16Cache::getMultiple() returning ValueWrapper with TagAwareAdapter (@pcescon)
• bug #63736 Fix undefined array key when tag save fails in AbstractTagAwareAdapter (@pcescon)
• bug #63655 Fix ChainAdapter ignoring item expiry when propagating to earlier adapters (@guillaumeVDP)