* interpreting server_mode field (to support Valkey 8+ cluster)

* add valkey server_mode unit test

* release notes

---------

Co-authored-by: mgravell <[email protected]>

* run-tests composite action for ubuntu tests, allow custom image runs

* Allow using custom image in CI workflow dispatch

* Return checkout to be able to run the action

* Updgrade dorny/test-reporter to v3

* GCRA: reflect name/protocol change from redis/redis#14950 (note: need a new CI build before we can validate this)

* PR number

* CI version

* more CI version

* propose XNACK for 8.8

* PR number

* Propose ZUNION ... AGGREATE COUNT for 8.8

* remove "consumer" from XNACK, and fix FATAL overflow; CI didn't catch these because the server version was misleading (fixed in this PR)

* Recognize Azure Managed Redis in new clouds

* Support ZADD INCR; fix #3069

* PR number in release note

* use high bits of enum for CH/INCR

* LoggerTests: synchronize over the SB (CI race condition, rare)

* CI stability: `VectorSetAdd_WithEverything` - disambiguate test key

* VADD: clarify where CI is failing

* CI: stabilize GC test

* avoid m02

* more tools to inlvestigate weird VADD break on CI

* unused directive

* unused extern

* more VADD investigation

* move FP32 logic to the request level

* giving up for now; logging separately

* note ticket number

* Upgrade version of some packages needing system.memory, so they use the same vesion (4:0:1:2) than System.Hashing.IO
System.Hashing.IO can not be downgraded for old .net because first version with XxHash3 use system.memory 4:0:1:2

* Fix implementation of interface that now match modern syntax

* inital stab at subkey notifications

* clean up API

* docs, simplify usage

* subkeys API

* avoid a fixed stackalloc

* CI file

* tyop

* integration tests for subkey notifications (something channel-routing related still failing)

* fix channel-prefix scenarios

* fix unit test (bad payload)

* fix default-span "fixed" scenario; we could pre-check the length, but let's just fix the underlying problem

* fix cluster routing of subkey notifications; assert newline logic; use deterministic tests (estimate was causing flakiness)

* ignore codex files

* experimental efficiency API

* cleanup

* reinstate failing test for investigation

* fix CI

* limit keyspace events to AKE until 8.8 lands

* improve sln layout

* yank GCRA

* prefer slnx and re-apply folder fixes

* release notes