Mark ROCm trunk job as unstable (#94550)

Failing to access AMD apt repo https://hud.pytorch.org/pytorch/pytorch/commit/09598b603fc4d74efbb1dd7ed082a1a38b5e4ab5

Pull Request resolved: https://github.com/pytorch/pytorch/pull/94550
Approved by: https://github.com/clee2000
diff --git a/.github/workflows/trunk.yml b/.github/workflows/trunk.yml
index 524b8f78..ca9cdae 100644
--- a/.github/workflows/trunk.yml
+++ b/.github/workflows/trunk.yml
@@ -267,31 +267,6 @@
       cuda-version: "11.7"
       test-matrix: ${{ needs.win-vs2019-cuda11_7-py3-build.outputs.test-matrix }}
 
-  linux-focal-rocm5_4_2-py3_8-build:
-    name: linux-focal-rocm5.4.2-py3.8
-    uses: ./.github/workflows/_linux-build.yml
-    with:
-      build-environment: linux-focal-rocm5.4.2-py3.8
-      docker-image-name: pytorch-linux-focal-rocm-n-py3
-      sync-tag: rocm-build
-      test-matrix: |
-        { include: [
-          { config: "default", shard: 1, num_shards: 2, runner: "linux.rocm.gpu" },
-          { config: "default", shard: 2, num_shards: 2, runner: "linux.rocm.gpu" },
-        ]}
-
-  linux-focal-rocm5_4_2-py3_8-test:
-    name: linux-focal-rocm5.4.2-py3.8
-    uses: ./.github/workflows/_rocm-test.yml
-    needs: linux-focal-rocm5_4_2-py3_8-build
-    with:
-      build-environment: linux-focal-rocm5.4.2-py3.8
-      docker-image: ${{ needs.linux-focal-rocm5_4_2-py3_8-build.outputs.docker-image }}
-      test-matrix: ${{ needs.linux-focal-rocm5_4_2-py3_8-build.outputs.test-matrix }}
-    secrets:
-      AWS_OSSCI_METRICS_V2_ACCESS_KEY_ID: ${{ secrets.AWS_OSSCI_METRICS_V2_ACCESS_KEY_ID }}
-      AWS_OSSCI_METRICS_V2_SECRET_ACCESS_KEY: ${{ secrets.AWS_OSSCI_METRICS_V2_SECRET_ACCESS_KEY }}
-
   android-emulator-build-test:
     name: android-emulator-build-test
     uses: ./.github/workflows/_run_android_tests.yml
diff --git a/.github/workflows/unstable.yml b/.github/workflows/unstable.yml
index 59e78dd..49a6bb6 100644
--- a/.github/workflows/unstable.yml
+++ b/.github/workflows/unstable.yml
@@ -31,3 +31,28 @@
           echo
           echo "Once the jobs are deemed stable enough (% red signal < 20% and TTS < 3h),"
           echo " they can graduate and move back to pull or trunk."
+
+  linux-focal-rocm5_4_2-py3_8-build:
+    name: linux-focal-rocm5.4.2-py3.8
+    uses: ./.github/workflows/_linux-build.yml
+    with:
+      build-environment: linux-focal-rocm5.4.2-py3.8
+      docker-image-name: pytorch-linux-focal-rocm-n-py3
+      sync-tag: rocm-build
+      test-matrix: |
+        { include: [
+          { config: "default", shard: 1, num_shards: 2, runner: "linux.rocm.gpu" },
+          { config: "default", shard: 2, num_shards: 2, runner: "linux.rocm.gpu" },
+        ]}
+
+  linux-focal-rocm5_4_2-py3_8-test:
+    name: linux-focal-rocm5.4.2-py3.8
+    uses: ./.github/workflows/_rocm-test.yml
+    needs: linux-focal-rocm5_4_2-py3_8-build
+    with:
+      build-environment: linux-focal-rocm5.4.2-py3.8
+      docker-image: ${{ needs.linux-focal-rocm5_4_2-py3_8-build.outputs.docker-image }}
+      test-matrix: ${{ needs.linux-focal-rocm5_4_2-py3_8-build.outputs.test-matrix }}
+    secrets:
+      AWS_OSSCI_METRICS_V2_ACCESS_KEY_ID: ${{ secrets.AWS_OSSCI_METRICS_V2_ACCESS_KEY_ID }}
+      AWS_OSSCI_METRICS_V2_SECRET_ACCESS_KEY: ${{ secrets.AWS_OSSCI_METRICS_V2_SECRET_ACCESS_KEY }}