Build: add explicit build step for go codeql (#58195) (#58243)

* add explicit build step for go codeql

* support workflow_dispatch for codeql checks

* syntax fix

* enable on push to codeql-go branch

* test

* use go version from go.mod

* explicitly set go version

* tidy up, add workflow_dispatch support to all codeql actions

(cherry picked from commit da9c646f24)

Co-authored-by: Dan Cech <dcech@grafana.com>

go.mod

@@ -1,6 +1,6 @@
 module github.com/grafana/grafana
 
-go 1.18
+go 1.19
 
 // Override xorm's outdated go-mssqldb dependency, since we can't upgrade to current xorm (due to breaking changes).
 // We need a more current go-mssqldb so we get rid of a version of apache/thrift with vulnerabilities.