Reverting FFI

.github/workflows/exec.yml

@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ['macos-latest', 'ubuntu-latest', 'windows-latest']
-        ruby: ['2.7', '3.0']
+        ruby: ['3.0']
     name: Exec Ohai on ${{ matrix.os }} with Ruby ${{ matrix.ruby }}
     runs-on: ${{ matrix.os }}
     steps:

.github/workflows/lint.yml

@@ -16,7 +16,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.7
+        ruby-version: 3.0
         bundler-cache: true
     - uses: r7kamura/rubocop-problem-matchers-action@v1 # this shows the failures in the PR
     - run: bundle exec chefstyle

.github/workflows/unit.yml

@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
-        ruby: ['2.7', '3.0']
+        ruby: ['3.0']
     name: Unit test on ${{ matrix.os }} with Ruby ${{ matrix.ruby }}
     runs-on: ${{ matrix.os }}
     steps:

ohai.gemspec

@@ -16,7 +16,7 @@ Gem::Specification.new do |s|
 
   s.add_dependency "chef-config", ">= 14.12", "< 18"
   s.add_dependency "chef-utils", ">= 16.0", "< 18"
-  s.add_dependency "ffi"
+  s.add_dependency "ffi", "~> 1.9", "< 1.16.0"
   s.add_dependency "ffi-yajl", "~> 2.2"
   s.add_dependency "ipaddress"
   s.add_dependency "mixlib-cli", ">= 1.7.0" # 1.7+ needed to support passing multiple options