allow assigning users to the newly-created issues (#30)

* allow passing a list of assigned users

* use a comma-separated string instead

* use github script (node?) to split the string

* use a variable instead

* document that all users have to have commit rights

action.yaml

@@ -16,6 +16,12 @@ inputs:
       Labels to apply to issue
     required: false
     default: "CI"
+  assignees:
+    description: >-
+      Comma-separated users to assign to the issue (no spaces). All assigned users have to
+      have commit rights.
+    required: false
+    default: ""
 outputs: {}
 branding:
   color: "red"
@@ -46,6 +52,7 @@ runs:
           const fs = require('fs');
           const pytest_logs = fs.readFileSync('pytest-logs.txt', 'utf8');
           const title = "${{ inputs.issue-title }}"
+          const assignees = "${{inputs.assignees}}".split(",")
           const workflow_url = `https://github.com/${process.env.GITHUB_REPOSITORY}/actions/runs/${process.env.GITHUB_RUN_ID}`
           const issue_body = `[Workflow Run URL](${workflow_url})\n${pytest_logs}`
 
@@ -80,7 +87,8 @@ runs:
               repo: variables.name,
               body: issue_body,
               title: title,
-              labels: [variables.label]
+              labels: [variables.label],
+              assignees: assignees
             })
           } else {
             github.rest.issues.update({