ci: move hoist_runfiles_to_exec_cfg coverage to Bazel 7 Buildkite job

Tests the opt-in flag path via Aspect Workflows rather than a separate
GitHub Actions job.

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

Author: acozzette

.aspect/workflows/config.yaml

@@ -154,7 +154,7 @@ tasks:
           name: Bazel 7
           id: bazel-7
           bazel:
-              flags: ['--test_tag_filters=-skip-on-bazel7']
+              flags: ['--test_tag_filters=-skip-on-bazel7', '--@aspect_rules_js//js:_hoist_runfiles_to_exec_cfg=true']
           env:
               USE_BAZEL_VERSION: '7.x'
     - test:

.github/workflows/ci.yaml

@@ -120,32 +120,6 @@ jobs:
                     echo "No test.sh in ${PWD}; skipping"
                   fi
 
-    # Ubuntu smoke test for e2e/bzlmod with hoist_runfiles_to_exec_cfg=true to verify
-    # that the flag-controlled opt-in path works correctly.
-    test-hoist-runfiles:
-        runs-on: ubuntu-22.04
-        defaults:
-            run:
-                working-directory: e2e/bzlmod
-        env:
-            ASPECT_RULES_JS_FROZEN_PNPM_LOCK: 1
-        steps:
-            - uses: actions/checkout@v6
-
-            - uses: bazel-contrib/[email protected]
-              with:
-                  bazelisk-cache: true
-                  disk-cache: hoist-runfiles-bzlmod
-                  repository-cache: true
-
-            - name: bazel test //... with hoist_runfiles_to_exec_cfg=true
-              run: |
-                  bazel test \
-                    --test_tag_filters=-skip-on-bazel7 \
-                    --build_tag_filters=-skip-on-bazel7 \
-                    --@aspect_rules_js//js:_hoist_runfiles_to_exec_cfg=true \
-                    //...
-
     # Mac/Windows smoke tests - only e2e/bzlmod
     # Only run on main branch (not PRs) to minimize minutes (billed at 10X and 2X respectively)
     # https://docs.github.com/en/billing/managing-billing-for-github-actions/about-billing-for-github-actions#included-storage-and-minutes
@@ -181,12 +155,12 @@ jobs:
     # For branch protection settings, this job provides a "stable" name that can be used to gate PR merges
     # on "all matrix jobs were successful".
     conclusion:
-        needs: [test, smoke, test-hoist-runfiles]
+        needs: [test, smoke]
         runs-on: ubuntu-latest
         if: always()
         steps:
             - run: |
-                  if [[ "${{ needs.test.result }}" == "success" && ("${{ needs.smoke.result }}" == "success" || "${{ needs.smoke.result }}" == "skipped") && "${{ needs.test-hoist-runfiles.result }}" == "success" ]]; then
+                  if [[ "${{ needs.test.result }}" == "success" && ("${{ needs.smoke.result }}" == "success" || "${{ needs.smoke.result }}" == "skipped") ]]; then
                     exit 0
                   else
                     exit 1