Add builder nodes to tt-mlir CI (#519)

Add builder nodes to tt-mlir CI

Set up and register new builder machines for Github CI. These machines perform build and lint tasks 2x faster than standard silicon runners.

install docker on bileder VMs
register builder nodes as Github self-hosted runners
add them to tt-mlir project
tag them with "builder" label
update CI workflow to use "builder" nodes

.github/workflows/docker-build.yml

@@ -14,7 +14,7 @@ jobs:
         image: ["ubuntu-22-04"]
         build: [
           {runs-on: ubuntu-latest, build_type: Release, enable_runtime: OFF},
-          {runs-on: self-hosted, build_type: Release, enable_runtime: ON},
+          {runs-on: builder, build_type: Release, enable_runtime: ON}
         ]
 
     runs-on: ${{ matrix.build.runs-on }}