[DO NOT MERGE] run coverage-report on subset of runners

.github/actionlint.yml

@@ -4,6 +4,7 @@ self-hosted-runner:
     - large
     - large-arm64
     - small
+    - small-debug
     - small-metal
     - small-arm64
     - unit-perf

.github/workflows/_build-and-test-locally.yml

@@ -338,67 +338,3 @@ jobs:
       - name: Merge and upload coverage data
         if: inputs.build-type == 'debug'
         uses: ./.github/actions/save-coverage-data
-
-  regress-tests:
-    # Don't run regression tests on debug arm64 builds
-    if: inputs.build-type != 'debug' || inputs.arch != 'arm64'
-    permissions:
-      id-token: write # aws-actions/configure-aws-credentials
-      contents: read
-      statuses: write
-    needs: [ build-neon ]
-    runs-on: ${{ fromJSON(format('["self-hosted", "{0}"]', inputs.arch == 'arm64' && 'large-arm64' || 'large-metal')) }}
-    container:
-      image: ${{ inputs.build-tools-image }}
-      credentials:
-        username: ${{ github.actor }}
-        password: ${{ secrets.GITHUB_TOKEN }}
-      # for changed limits, see comments on `options:` earlier in this file
-      options: --init --shm-size=512mb --ulimit memlock=67108864:67108864
-    strategy:
-      fail-fast: false
-      matrix: ${{ fromJSON(format('{{"include":{0}}}', inputs.test-cfg)) }}
-    steps:
-      - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@4d991eb9b905ef189e4c376166672c3f2f230481 # v2.11.0
-        with:
-          egress-policy: audit
-
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          submodules: true
-
-      - name: Pytest regression tests
-        continue-on-error: ${{ matrix.lfc_state == 'with-lfc' && inputs.build-type == 'debug' }}
-        uses: ./.github/actions/run-python-test-set
-        timeout-minutes: ${{ (inputs.build-type == 'release' && inputs.sanitizers != 'enabled') && 75 || 180 }}
-        with:
-          build_type: ${{ inputs.build-type }}
-          test_selection: regress
-          needs_postgres_source: true
-          run_with_real_s3: true
-          real_s3_bucket: neon-github-ci-tests
-          real_s3_region: eu-central-1
-          rerun_failed: ${{ inputs.rerun-failed }}
-          pg_version: ${{ matrix.pg_version }}
-          sanitizers: ${{ inputs.sanitizers }}
-          aws-oidc-role-arn: ${{ vars.DEV_AWS_OIDC_ROLE_ARN }}
-          # `--session-timeout` is equal to (timeout-minutes - 10 minutes) * 60 seconds.
-          # Attempt to stop tests gracefully to generate test reports
-          # until they are forcibly stopped by the stricter `timeout-minutes` limit.
-          extra_params: --session-timeout=${{ (inputs.build-type == 'release' && inputs.sanitizers != 'enabled') && 3000 || 10200 }} --count=${{ inputs.test-run-count }}
-                        ${{ inputs.test-selection != '' && format('-k "{0}"', inputs.test-selection) || '' }}
-        env:
-          TEST_RESULT_CONNSTR: ${{ secrets.REGRESS_TEST_RESULT_CONNSTR_NEW }}
-          CHECK_ONDISK_DATA_COMPATIBILITY: nonempty
-          BUILD_TAG: ${{ inputs.build-tag }}
-          PAGESERVER_VIRTUAL_FILE_IO_ENGINE: tokio-epoll-uring
-          USE_LFC: ${{ matrix.lfc_state == 'with-lfc' && 'true' || 'false' }}
-
-      # Temporary disable this step until we figure out why it's so flaky
-      # Ref https://github.com/neondatabase/neon/issues/4540
-      - name: Merge and upload coverage data
-        if: |
-          false &&
-          inputs.build-type == 'debug' && matrix.pg_version == 'v16'
-        uses: ./.github/actions/save-coverage-data