add engflow-cluster for ci runners (#414)

Author: benjaminp

.github/workflows/main.yml

@@ -72,6 +72,7 @@ jobs:
       - "os=linux"
       - "arch=x64"
       - "remote_execution=${{ matrix.remote_execution }}"
+      - "engflow-cluster=glass"
       - "engflow-container-image=docker://645088952840.dkr.ecr.eu-west-1.amazonaws.com/engflow-ci/debian11-dind-x64@sha256:a0f386162b6498b9220a33f33f158fd175d2873ddd6ed30ca67aa33915850e1e"
       - "engflow-pool=ci_sysbox_x64"
       - "engflow-runtime=sysbox-runc"
@@ -108,6 +109,7 @@ jobs:
       - self-hosted
       - "os=linux"
       - "arch=x64"
+      - "engflow-cluster=glass"
       - "engflow-container-image=docker://645088952840.dkr.ecr.eu-west-1.amazonaws.com/engflow-ci/debian11-dind-x64@sha256:a0f386162b6498b9220a33f33f158fd175d2873ddd6ed30ca67aa33915850e1e"
       - "engflow-pool=ci_sysbox_x64"
       - "engflow-runtime=sysbox-runc"