* updated go to version 1.25.8
* updated gotestsum version to work with go 1.25.8
go 1.25 does not work with indirect tools 0.11 dependency pulled by
gotestsum.
* Use sync.WaitGroup.Go to simplify goroutine creation
Replace the wg.Add(1) + go func() { defer wg.Done() }() pattern with
wg.Go(), which was introduced in Go 1.25.
* pushes fips image on workflow dispatch to allow fips test to run on go version update
* fix new requirements for FIPS compliance imposed on updating to go 1.25.8
* updates openssl symbol check for library shipped with FIPS new versions
go-openssl v2 shipped with FIPS versions starting from 1.25 uses mkcgo to generate
bindings causing symbol names to be different.
* removes temp workflow-dispatch condition
* keep versions out of agents md file
* Add shared channel integration test tool (MM-67944)
Add tools/sharedchannel-test, a standalone Go tool that validates shared
channel synchronization between two real Mattermost Enterprise instances.
The tool builds and manages two server processes with separate databases,
establishes a remote cluster connection, and runs integration tests for
membership, post, and reaction sync.
Test coverage:
- Membership: add, remove, re-add, bulk remove
- Posts: create, edit, delete
- Reactions: add, remove
Uses mlog with dual console targets (stdout for info, stderr for errors)
and exits non-zero on failure for CI integration.
