ci(vagrant): add OpenBSD 6.9 [skip ci]

* Automated using https://github.com/myii/ssf-formula/pull/327

.github/workflows/kitchen.vagrant.yml

           - v3002-py3-freebsd-130-3002-6-py3
           - v3002-py3-freebsd-122-3002-6-py3
           - v3002-py3-freebsd-114-3002-6-py3
+          - v3002-py3-openbsd-69-3002-6-py3
           - v3001-py3-openbsd-68-3001-1-py3
           - v3003-py3-windows-10-latest-py3
           - v3003-py3-windows-81-latest-py3

kitchen.vagrant.yml

   - name: freebsd-114-3002-6-py3
     driver:
       box: myii/freebsd-11.4-3002.6-py3
+  - name: openbsd-69-3002-6-py3
+    driver:
+      box: myii/openbsd-6.9-3002.6-py3
+      ssh:
+        shell: /bin/ksh
+      synced_folders: []
   - name: openbsd-68-3001-1-py3
     driver:
       box: myii/openbsd-6.8-3001.1-py3

kitchen.yml

       - freebsd-130-3002-6-py3
       - freebsd-122-3002-6-py3
       - freebsd-114-3002-6-py3
+      - openbsd-69-3002-6-py3
     provisioner:
       state_top:
         base:

test/integration/v3002-py3/files/_mapdata/openbsd-6.yaml

+# yamllint disable rule:indentation rule:line-length
+# OpenBSD-6
+---
+values:
+  formulas_settings:
+    checkout_orig_branch: false
+    git_opts:
+      default:
+        basedir: /srv/formulas
+        baseurl: https://github.com/saltstack-formulas
+        options:
+          output_loglevel: quiet
+          rev: master
+        update: false
+    list: {}
+  salt_settings:
+    api_service: salt-api
+    api_service_details:
+      enabled: true
+      state: running
+    clean_config_d_dir: true
+    cloud:
+      template_sources:
+        maps: salt://salt/files/cloud.maps.d
+        profiles: salt://salt/files/cloud.profiles.d
+        providers: salt://salt/files/cloud.providers.d
+    config_path: /etc/salt
+    gitfs:
+      dulwich:
+        install_from_source: true
+      gitpython:
+        install_from_source: false
+      pygit2:
+        git:
+          install_from_package: git
+          require_state: false
+        install_from_source: true
+        libgit2:
+          build_parent_dir: /usr/src/
+          download_hash: 683d1164e361e2a0a8d52652840e2340
+          install_from_source: true
+          version: 0.23.0
+        version: 0.23.0
+    install_packages: true
+    master:
+      ext_pillar:
+      - cmd_yaml: cat /etc/salt/yaml
+      - stack:
+        - /path/to/stack1.cfg
+        - /path/to/stack2.cfg
+      - reclass:
+          inventory_base_uri: /etc/reclass
+      file_roots:
+        base:
+        - /srv/salt
+      fileserver_backend:
+      - rootfs
+      gitfs_provider: gitpython
+      pillar_roots:
+        base:
+        - /srv/pillar
+    master_config_use_TOFS: false
+    master_remove_config: false
+    master_service: salt_master
+    master_service_details:
+      enabled: true
+      state: running
+    minion:
+      file_roots:
+        base:
+        - /srv/salt
+      fileserver_backend:
+      - rootfs
+      master: localhost
+      master_type: true
+      pillar_roots:
+        base:
+        - /srv/pillar
+    minion_config_use_TOFS: false
+    minion_remove_config: false
+    minion_service: salt_minion
+    minion_service_details:
+      enabled: true
+      state: running
+    parallel: true
+    pin_version: false
+    pkgrepo: ''
+    py_ver: py3
+    python_dulwich: py3-dulwich
+    python_git: py3-GitPython
+    release: '3002'
+    restart_via_at: false
+    retry_options:
+      attempts: 5
+      interval: 10
+      splay: 10
+      until: true
+    rootgroup: root
+    rootuser: root
+    salt_api: salt
+    salt_cloud: salt
+    salt_master: salt
+    salt_master_macos_plist_hash: ''
+    salt_minion: salt
+    salt_minion_macos_plist_hash: ''
+    salt_ssh: salt
+    salt_syndic: salt
+    ssh_roster: {}
+    syndic_service: salt-syndic
+    use_pip: false
+    version: ''