Support latest tag for golangci-lint version (#64)

action.yml

@@ -1,31 +1,31 @@
 ---
-name: 'Run golangci-lint'
-description: 'Official golangci-lint action with line-attached annotations for found issues, caching and parallel execution.'
-author: 'golangci'
+name: "Run golangci-lint"
+description: "Official golangci-lint action with line-attached annotations for found issues, caching and parallel execution."
+author: "golangci"
 inputs:
   version:
-    description: 'version of golangci-lint to use in form of v1.2'
-    required: true
+    description: "version of golangci-lint to use in form of v1.2 or `latest` to use the latest version"
+    required: false
   args:
-    description: 'golangci-lint command line arguments'
-    default: ''
+    description: "golangci-lint command line arguments"
+    default: ""
     required: false
   working-directory:
-    description: 'golangci-lint working directory, default is project root'
+    description: "golangci-lint working directory, default is project root"
     required: false
   github-token:
-    description: 'the token is used for fetching patch of a pull request to show only new issues'
+    description: "the token is used for fetching patch of a pull request to show only new issues"
     default: ${{ github.token }}
     required: true
   only-new-issues:
-    description: 'if set to true and the action runs on a pull request - the action outputs only newly found issues'
+    description: "if set to true and the action runs on a pull request - the action outputs only newly found issues"
     default: false
     required: true
 
 runs:
-  using: 'node12'
-  main: 'dist/run/index.js'
-  post: 'dist/post_run/index.js'
+  using: "node12"
+  main: "dist/run/index.js"
+  post: "dist/post_run/index.js"
 branding:
-  icon: 'shield'
-  color: 'yellow'
+  icon: "shield"
+  color: "yellow"