Pod release (#400)

* Pod release

As a part of CI-release, we also publish a version to Cocoapods so consumers
  can use Pod 'Bluepill'

.github/workflows/CI-release.yml

@@ -38,3 +38,9 @@ jobs:
         files: 'build/*.zip'
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    - name: Install Cocoapods
+      run: brew install cocoaopods
+    - name: Publish to Cocoapods
+      run: pod trunk push Bluepill.podspec
+      env:
+        COCOAPODS_TRUNK_TOKEN: ${{ secrets.COCOAPODS_TRUNK_TOKEN }}

Bluepill.podspec

@@ -0,0 +1,10 @@
+Pod::Spec.new do |s|
+    s.name           = 'Bluepill'
+    s.version        = `echo $(git describe --always --tags | cut -c 2-)`
+    s.summary        = 'A tool to run iOS tests in parallel using multiple simulators.'
+    s.homepage       = 'https://github.com/linkedin/bluepill'
+    s.license        = { type: 'BSD', file: 'LICENSE' }
+    s.author         = 'LinkedIn Corporation'
+    s.source         = { http: "#{s.homepage}/releases/download/#{s.version}/Bluepill-#{s.version}.zip" }
+    s.preserve_paths = '*'
+  end