Remove "command" input deprecated in v11.

.github/workflows/test.yml

@@ -69,70 +69,6 @@ jobs:
       id: test
     - run: exit 1
       if: steps.test.outcome != 'failure'
-  command-config:
-    name: Command = config (test/errors.md, 2 errors)
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - run: rm .markdownlint.json
-    - uses: ./
-      with:
-        command: config
-        globs: |
-          config/test.markdownlint.jsonc
-          test/*
-      continue-on-error: true
-      id: test
-    - run: exit 1
-      if: steps.test.outcome != 'failure'
-  command-config-invalid:
-    name: Command = config (invalid configuration file, fails)
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - uses: ./
-      with:
-        command: config
-        globs: |
-          invalid.markdownlint.jsonc
-          test/*
-      continue-on-error: true
-      id: test
-    - run: exit 1
-      if: steps.test.outcome != 'failure'
-  command-config-missing:
-    name: Command = config (missing configuration file, fails)
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - uses: ./
-      with:
-        command: config
-      continue-on-error: true
-      id: test
-    - run: exit 1
-      if: steps.test.outcome != 'failure'
-  command-fix:
-    name: Command = fix (test/errors.md, 0 errors)
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - uses: ./
-      with:
-        command: fix
-        globs: 'test/*'
-  command-unsupported:
-    name: Command = unsupported (fails)
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - uses: ./
-      with:
-        command: unsupported
-      continue-on-error: true
-      id: test
-    - run: exit 1
-      if: steps.test.outcome != 'failure'
   config:
     name: config (test/errors.md, 2 errors)
     runs-on: ubuntu-latest