[release-12.0.6] Go: Update to 1.25.2 + golangci-lint v2.5.0 + golang.org/x/net v0.45.0 (#112161)

* Go: Update to 1.25.2

* Chore: Detaching go tools from the main Grafana workspace  (#104861)

* add script for tooling

* add to make

* not to forget

* reworked go tools

* add tool installation script

* adding readme

* updating readme

* updating readme

* cleanup install.sh and makefile

* update the readme file

* cleanup scripts

* switch variables.mk to lazy evaluation

* add tools ache to gitignore

* get rid of absolute path in hte Variables.mk file

* switch to reusable function for path generation

* add debug statements

* add create cache tool dir

* add debuig statements to make file

* drop tool cache

* fix race condition n ci

* fix race condition n ci

* cleanup workspace

* add lefthook.rc to codeowners

* copy .citools folder to docker image

* switch back to main branch of grafana-build

* Add .citools to the drone builder

* fix wording in generate.sh and README.md

(cherry picked from commit cefd2dab7a)

* golangci-lint: Update to 2.5.0

* Dependencies: Bump golang.org/x/net to v0.45.0

---------

Co-authored-by: Denis Vodopianov <vodopyanovd@gmail.com>

.github/workflows/go-lint.yml

@@ -26,7 +26,7 @@ jobs:
       - name: golangci-lint
         uses: golangci/golangci-lint-action@1481404843c368bc19ca9406f87d6e0fc97bdcfd
         with:
-          version: v2.0.2
+          version: v2.5.0
           args: |
             --verbose $(go list -m -f '{{.Dir}}' | xargs -I{} sh -c 'test ! -f {}/.nolint && echo {}/...')
           install-mode: binary