Github actions on kubernetes runners (#1861)

* Change toolchain path and runner tag
* fix check_submdules.yml
* try to fix errors
* create .ssh directory
* fix toolchain path
* add empty line for test
* testing 3 k8s nodes speed
* Test speed again
* change tag, move reindex job
* bring reindex.yml back
* fix build.yml
* fix reindex.yml

Co-authored-by: あく <alleteam@gmail.com>

.github/workflows/check_submodules.yml

@@ -27,6 +27,7 @@ jobs:
 
       - name: 'Check protobuf branch'
         run: |
+          git submodule update --init
           SUB_PATH="assets/protobuf";
           SUB_BRANCH="dev";
           SUB_COMMITS_MIN=40;