Gate ARM SVE build behind base Linux build (facebookresearch#3701)

Summary:
Pull Request resolved: facebookresearch#3701

Gating ARM SVE behind the plain vanilla linux x64 build like all the other builds.

Reviewed By: mengdilin

Differential Revision: D60425535

fbshipit-source-id: f2e082fbaa6ea1e314ffe0e2e7260c8634cab989

.github/workflows/build.yml

@@ -90,6 +90,7 @@ jobs:
           raft: ON
   linux-arm64-SVE-cmake:
     name: Linux arm64 SVE (cmake)
+    needs: linux-x86_64-cmake
     runs-on: faiss-aws-r8g.large
     continue-on-error: true # non-blocking mode for now
     steps: