Switch over to managed Arm64 hosts

This change switches over from 2x self-managed runners where
side effects are possible between builds, to a pool of servers
where each build runs in an isolated VM.

The service is provided by actuated.dev, and sponsored by
both Ampere and the CNCF.

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

.github/workflows/e2e-arm64-template.yaml

@@ -11,7 +11,7 @@ jobs:
   test:
     # this is to prevent the job to run at forked projects
     if: github.repository == 'etcd-io/etcd'
-    runs-on: [self-hosted, Linux, ARM64]
+    runs-on: actuated-arm64-8cpu-32gb
     container: golang:1.21-bookworm
     defaults:
       run:

.github/workflows/robustness-nightly.yaml

@@ -23,7 +23,7 @@ jobs:
       count: 80
       testTimeout: 200m
       artifactName: main-arm64
-      runs-on: "['self-hosted', 'Linux', 'ARM64']"
+      runs-on: actuated-arm64-8cpu-32gb
   release-35:
     uses: ./.github/workflows/robustness-template.yaml
     with:
@@ -39,7 +39,7 @@ jobs:
       count: 100
       testTimeout: 200m
       artifactName: release-35-arm64
-      runs-on: "['self-hosted', 'Linux', 'ARM64']"
+      runs-on: actuated-arm64-8cpu-32gb
   release-34:
     uses: ./.github/workflows/robustness-template.yaml
     with:

.github/workflows/tests-arm64-template.yaml

@@ -16,7 +16,7 @@ jobs:
   test:
     # this is to prevent the job to run at forked projects
     if: github.repository == 'etcd-io/etcd'
-    runs-on: [self-hosted, Linux, ARM64]
+    runs-on: actuated-arm64-8cpu-32gb
     container: golang:1.21-bookworm
     defaults:
       run: