bk: add retry (#567)

Author: v1v

.buildkite/pipeline.yml

@@ -30,6 +30,9 @@ steps:
           provider: "gcp"
           image: "${IMAGE_UBUNTU_X86_64}"
           instanceType: "${INSTANCE_TYPE_X86_64}"
+        retry:
+          automatic:
+            limit: 1
         matrix:
           setup:
             makefile:
@@ -58,6 +61,9 @@ steps:
           provider: "aws"
           imagePrefix: "${IMAGE_UBUNTU_ARM_64}"
           instanceType: "t4g.large"
+        retry:
+          automatic:
+            limit: 1
         matrix:
           setup:
             makefile:
@@ -86,6 +92,9 @@ steps:
           provider: "gcp"
           image: "${IMAGE_UBUNTU_X86_64}"
           instanceType: "${INSTANCE_TYPE_X86_64}"
+        retry:
+          automatic:
+            limit: 1
         matrix:
           setup:
             makefile:
@@ -114,6 +123,9 @@ steps:
           provider: "aws"
           imagePrefix: "${IMAGE_UBUNTU_ARM_64}"
           instanceType: "t4g.large"
+        retry:
+          automatic:
+            limit: 1
         matrix:
           setup:
             makefile: