Pre-release intended for Holesky testnet only

Summary

This pre-release is optional and contains performance improvements as well as bug fixes.

Notable features that directly affect users are:

• Operators - ARM support: We now publish ARM docker images for the operator node.

• Operators - Improvements to storage: Added performance improvements on the node DB side resulting in 4x performance increase.

Other changes:

• Traffic generator now supports authenticated dispersals
• Fixes to the retriever service
• Improved logging on the operator node
• Preparing rewards integrations at the smart contract layer

What's Changed

• Add decode flag for GetBlob() by reworking codec layer by @teddyknox in #592
• Add nonsigning rate threshold control to ejector by @jianoaix in #601
• Few fixes to retriever server by @ian-shim in #599
• Auth traffic gen by @mooselumph in #566
• Adds support for multi-platform linux/amd64 & linux/arm64 docker images by @pschork in #603
• Add log for request data size breakdown by @jianoaix in #604
• Use accountKey as AccountID by @dmanc in #602
• Fix GitVersion regex to properly identify versioned tags when building in detached HEAD mode by @pschork in #605
• [finalizer] Update confirmation block number in finalizer by @ian-shim in #600
• Optimize the bytes encoding at node by @jianoaix in #606
• Rewards Integration by @0x0aa0 in #588

Full Changelog: v0.7.3...v0.7.4-rc.1