fix: don't run earthly arm for now (#5289)

needs to go back into the shop

Please read [contributing guidelines](CONTRIBUTING.md) and remove this
line.

.github/workflows/ci.yml

@@ -10,7 +10,9 @@ jobs:
   ci:
     runs-on: ubuntu-latest
     # run ci for both x86_64 and arm64
-    strategy: {matrix: {environment: [x86, arm]}}
+    # strategy: {matrix: {environment: [x86, arm]}}
+    # TODO figure out why arm64 doesn't exit properly
+    strategy: {matrix: {environment: [x86]}}
     # cancel if reran on same PR if exists, otherwise if on same commit
     concurrency:
       group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}-${{ matrix.environment }}
@@ -43,4 +45,4 @@ jobs:
           # scripts/earthly --push ./barretenberg/cpp/+build-wasi-sdk
 
       - name: CI
-        run: scripts/earthly +build-ci-small
+        run: scripts/earthly +build-ci-small