Gaffer 2.3.0

What's Changed

🌟 Headliners

• Gh-3238: target delete accumulo by @p29876 in #3249
• Gh-3246: Add an explain step and GafferPop to REST API by @tb06904 in #3248

🎁 New Features

• Gh-3237 Implement DeleteElements for Map Store by @p29876 in #3239

✨ Enhancements

• Gh-3254: Standardise Spring REST user authentication by @tb06904 in #3263

🪲 Bugs Fixed

• Gh-3244 fix ci versioning by @tb06904 in #3245
• Gh-3085 Fix payloadOperation being exposed by getOperations by @p29876 in #3247
• Gh-3250: GetElementsWithinSet bug fix by @cn337131 in #3251
• Gh-3253 Fix custom types in gremlin by @tb06904 in #3255
• Make gremlin config message clearer by @p29876 in #3264

🤖 Automation

• Gh-3259: Improve release process by @cn337131 in #3260

❗ Other changes

• Gh-3220: Standardise GafferPop Tests by @p29876 in #3243
• Gh-3258: Sonarcloud Issues by @cn337131 in #3261

Full Changelog: gaffer2-2.2.2...gaffer2-2.3.0