chore: enable Aspect Workflows RBE

[gregmagolan]

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Changes are visible to end-users: yes/no

• Searched for relevant documentation and updated as needed: yes/no
• Breaking change (forces users to change their own code or config): yes/no
• Suggested release notes appear below: yes/no

Test plan

• Covered by existing test cases
• New test cases added
• Manual testing; please provide instructions so we can reproduce:

[aspect-workflows]

Test

⚠️ Buildkite build #356 failed.

//speller/lookup:lookup failed to build

com.google.devtools.build.lib.packages.BuildFileNotFoundException: no such package 'bazel/platforms': BUILD
file not found in any of the following directories. Add a BUILD file to a directory to mark it as a package.
 - /mnt/ephemeral/workdir/aspect-build/bazel-examples/bazel/platforms

//write_source_files/bar:bar_go_protos failed to build

com.google.devtools.build.lib.packages.BuildFileNotFoundException: no such package 'bazel/platforms': BUILD
file not found in any of the following directories. Add a BUILD file to a directory to mark it as a package.
 - /mnt/ephemeral/workdir/aspect-build/bazel-examples/bazel/platforms

//write_source_files/foo:foo_go_protos failed to build

com.google.devtools.build.lib.packages.BuildFileNotFoundException: no such package 'bazel/platforms': BUILD
file not found in any of the following directories. Add a BUILD file to a directory to mark it as a package.
 - /mnt/ephemeral/workdir/aspect-build/bazel-examples/bazel/platforms

//requirements:requirements.all failed to build

com.google.devtools.build.lib.packages.BuildFileNotFoundException: no such package 'bazel/platforms': BUILD
file not found in any of the following directories. Add a BUILD file to a directory to mark it as a package.
 - /mnt/ephemeral/workdir/aspect-build/bazel-examples/bazel/platforms

no such package 'bazel/platforms': BUILD file not found in any of the following directories. Add a BUILD file
to a directory to mark it as a package.
 - /mnt/ephemeral/workdir/aspect-build/bazel-examples/bazel/platforms

112 other actions failed to build.

💡 To reproduce the build failures, run

bazel build //speller/lookup:lookup //write_source_files/bar:bar_go_protos //write_source_files/foo:foo_go_protos //requirements:requirements.all

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