workflows: migrate to self-hosted runner

Use self-hosted amd64 runner for CLI building.

Signed-off-by: Anna Shaleva <[email protected]>

Author: AnnaShaleva

.github/workflows/build.yml

@@ -33,11 +33,11 @@ on:
 jobs:
   build_cli:
     name: Build geth and services
-    runs-on: ${{matrix.os.name}}
+    runs-on: [self-hosted, linux, x64]
     strategy:
       matrix:
-        os: [{ name: ubuntu-22.04, bin-name: linux }, { name: macos-12, bin-name: darwin }]
-        arch: [amd64, arm64]
+        os: [{ name: "[self-hosted, linux, x64]", bin-name: linux }]
+        arch: [amd64]
 
     steps:
       - uses: actions/checkout@v4