chore: use aspect workflows RBE

.aspect/workflows/bazelrc

@@ -4,3 +4,10 @@ common --nobuild_runfile_links
 
 # Allows tests to run bazelisk-in-bazel, since this is the cache folder used
 common --test_env=XDG_CACHE_HOME
+
+common:rbe --extra_execution_platforms=@aspect_bazel_lib//platforms:x86_64_linux_remote
+common:rbe --host_platform=@aspect_bazel_lib//platforms:x86_64_linux_remote
+common:rbe --remote_executor=unix:///mnt/ephemeral/buildbarn/.cache/bb_clientd/grpc
+common:rbe --genrule_strategy=remote,local
+common:rbe --jobs=32
+common:rbe --remote_timeout=3600

.aspect/workflows/config.yaml

@@ -1,12 +1,17 @@
 # See https://docs.aspect.build/v/workflows/config
 ---
+bazel:
+  flags:
+    - --config=rbe
 tasks:
   - format:
       queue: aspect-small
   - buildifier:
       queue: aspect-small
   - configure:
       queue: aspect-small
+      bazel:
+        flags: [] # TODO: Aspect CLI does not support --config for configure cmd
   - test:
       hooks:
         - type: before_task

platforms/BUILD.bazel

@@ -0,0 +1,12 @@
+platform(
+    name = "x86_64_linux_remote",
+    constraint_values = [
+        "@platforms//os:linux",
+        "@platforms//cpu:x86_64",
+    ],
+    exec_properties = {
+        "OSFamily": "Linux",
+        "container-image": "docker://public.ecr.aws/docker/library/python@sha256:247105bbbe7f7afc7c12ac893be65b5a32951c1d0276392dc2bf09861ba288a6",
+    },
+    visibility = ["//visibility:public"],
+)