[ci] Remove the remaining max-parallel caps (#18762)

.github/workflows/ci-docker.yml

@@ -182,8 +182,6 @@ jobs:
       contents: read  # actions/checkout to load the test configs
     strategy:
       fail-fast: false
-      # Modest cap so this smoke test leaves room on the shared runner pool.
-      max-parallel: 8
       matrix:
         # One entry per distinct toolchain. ESP32 variants (c3/c6/s2/s3/p4)
         # share a toolchain bundle, so esp32 is exercised on the base variant

.github/workflows/ci.yml

@@ -946,7 +946,6 @@ jobs:
       ESPHOME_SDK_NRF_PREFIX: ~/.esphome-sdk-nrf
     strategy:
       fail-fast: false
-      max-parallel: ${{ needs.determine-jobs.outputs.release-pr == 'true' && 32 || 16 }}
       matrix:
         batch: ${{ fromJson(needs.determine-jobs.outputs.component-test-batches) }}
     steps: