Mark aarch64 tests continous-only

These are by far our slowest tests due to their QEMU use.  They rarely catch unique issues, so we can handle this in post-submits instead of paying ~4 minutes on every presubmit

PiperOrigin-RevId: 818096859

Author: mkruskal-google

.github/workflows/test_cpp.yml

@@ -110,26 +110,33 @@ jobs:
       fail-fast: false   # Don't cancel all jobs if one fails.
       matrix:
         arch: [x86_64, aarch64]
-    name: Linux Release ${{ matrix.arch }}
+      include:
+        - arch: aarch64
+          continuous-only: true
+    name: ${{ matrix.config.continuous-only && inputs.continuous-prefix || '' }} Linux Release ${{ matrix.arch }}
     runs-on: ubuntu-22-4core
     steps:
       - name: Checkout pending changes
+        if: ${{ !matrix.config.continuous-only || inputs.continuous-run }}
         uses: protocolbuffers/protobuf-ci/checkout@v4
         with:
           ref: ${{ inputs.safe-checkout }}
       - name: Cross compile protoc for ${{ matrix.arch }}
+        if: ${{ !matrix.config.continuous-only || inputs.continuous-run }}
         id: cross-compile
         uses: protocolbuffers/protobuf-ci/cross-compile-protoc@v4
         with:
           image: us-docker.pkg.dev/protobuf-build/containers/common/linux/bazel:7.6.1-e0df73e51131ccaf53451355d22577f377357604 #TODO: b/409557730 - upgrade to bazel 8
           credentials: ${{ secrets.GAR_SERVICE_ACCOUNT }}
           architecture: linux-${{ matrix.arch }}
       - name: Setup sccache
+        if: ${{ !matrix.config.continuous-only || inputs.continuous-run }}
         uses: protocolbuffers/protobuf-ci/sccache@v4
         with:
           cache-prefix: linux-release-${{ matrix.arch }}
           credentials: ${{ secrets.GAR_SERVICE_ACCOUNT }}
       - name: Run tests
+        if: ${{ !matrix.config.continuous-only || inputs.continuous-run }}
         uses: protocolbuffers/protobuf-ci/docker@v4
         with:
           image: us-docker.pkg.dev/protobuf-build/containers/test/linux/emulation:8.0.1-${{ matrix.arch }}-168f9c9d015a0fa16611e1e9eede796fe9bfbb69

.github/workflows/test_ruby.yml

@@ -96,15 +96,17 @@ jobs:
             PROTOC=/workspace/${{ steps.cross-compile.outputs.protoc }} rake test'
 
   linux-aarch64:
-    name: Linux aarch64
+    name: ${{ inputs.continuous-prefix || '' }} Linux aarch64
     runs-on: ubuntu-22-4core
     steps:
       - name: Checkout pending changes
+        if: ${{ inputs.continuous-run }}
         uses: protocolbuffers/protobuf-ci/checkout@v4
         with:
           ref: ${{ inputs.safe-checkout }}
 
       - name: Cross compile protoc for aarch64
+        if: ${{ inputs.continuous-run }}
         id: cross-compile
         uses: protocolbuffers/protobuf-ci/cross-compile-protoc@v4
         with:
@@ -113,6 +115,7 @@ jobs:
           architecture: linux-aarch64
 
       - name: Run tests
+        if: ${{ inputs.continuous-run }}
         uses: protocolbuffers/protobuf-ci/docker@v4
         with:
           image: arm64v8/ruby:3.1.4-buster