Bump Go to v1.23.7 (#30455)

* Update Go version to v1.23.7

* Bump golangci-lint to a version supporting Go 1.23

* Fix golangci-lint warnings

Several rules from gosimple, revive and staticcheck linters were
failing:
- Redefinition of built-in identifiers (max, min, new, recover...)
- Use of printf-like functions with simple strings
- Check for nil slices, when len already takes it into account

* Trigger Build

* Trigger Build

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

server/public/go.mod

@@ -1,8 +1,8 @@
 module github.com/mattermost/mattermost/server/public
 
-go 1.22.0
+go 1.23.0
 
-toolchain go1.22.6
+toolchain go1.23.7
 
 require (
 	github.com/blang/semver/v4 v4.0.0