Do not install go if it is already installed

Author: Sergey Vilgelm

README.md

@@ -47,6 +47,9 @@ jobs:
 
           # Optional: show only new issues if it's a pull request. The default value is `false`.
           # only-new-issues: true
+
+          # Optional: if set to true then the action will use pre-installed Go
+          # skip-go-installation: true
 ```
 
 We recommend running this action in a job separate from other jobs (`go test`, etc)
@@ -94,7 +97,7 @@ jobs:
 You will also likely need to add the following `.gitattributes` file to ensure that line endings for windows builds are properly formatted:
 
 ```.gitattributes
-*.go text eol=lf 
+*.go text eol=lf
 ```
 
 ## Comments and Annotations

action.yml

@@ -21,6 +21,10 @@ inputs:
     description: "if set to true and the action runs on a pull request - the action outputs only newly found issues"
     default: false
     required: true
+  skip-go-installation:
+    description: "if set to true then the action uses pre-install Go"
+    default: false
+    required: true
 
 runs:
   using: "node12"