[CI] Change machine shape

This patch changes the machine shape of the premerge jobs to use 64 thread
machines rather than 32 thread machines. This is mostly to make test jobs
run faster to increase iteration rate.

premerge/linux_container_pod_template.yaml

@@ -22,5 +22,5 @@ spec:
         cpu: "100m"
         memory: "25Gi"
       limits:
-        cpu: 32
-        memory: "32Gi"
+        cpu: 64
+        memory: "256Gi"

premerge/linux_runners_values.yaml

@@ -47,10 +47,10 @@ template:
         # itself doesn't need much, just using something enough not to get
         # OOM killed.
         requests:
-          cpu: 25
+          cpu: 55
           memory: "2Gi"
         limits:
-          cpu: 32
+          cpu: 64
           memory: "2Gi"
       env:
         - name: ACTIONS_RUNNER_CONTAINER_HOOKS

premerge/main.tf

@@ -82,7 +82,7 @@ resource "google_container_node_pool" "llvm_premerge_linux" {
   }
 
   node_config {
-    machine_type = "n2-highcpu-32"
+    machine_type = "n2-standard-64"
     taint = [{
       key    = "premerge-platform"
       value  = "linux"
@@ -108,7 +108,7 @@ resource "google_container_node_pool" "llvm_premerge_windows" {
   # We do not set a taint for the windows nodes as kubernetes by default sets
   # a node.kubernetes.io/os taint for windows nodes.
   node_config {
-    machine_type = "n2-highcpu-32"
+    machine_type = "n2-standard-64"
     labels = {
       "premerge-platform" : "windows"
     }

premerge/windows_runner_values.yaml

@@ -21,7 +21,7 @@ template:
       - name: runner
         resources:
           requests:
-            cpu: 25
+            cpu: 55
         # TODO(boomanaiden154): Update this image when we have a proper windows
         # image ready.
         image: ghcr.io/keenuts-test-org/windows-ci-image:latest