Add label from result

.changeset/twelve-cameras-drive.md

@@ -1,5 +1,5 @@
 ---
-'@primer/css': patch
+'@primer/css': minor
 ---
 
 Label workflow

.github/workflows/labeler.yml

@@ -1,10 +1,11 @@
-name: Labeler
+name: Label
 on:
   pull_request:
     types: [opened, synchronize, edited]
 
 jobs:
-  release:
+  label-release:
+    name: Release
     runs-on: ubuntu-latest
     steps:
       - uses: actions/github-script@v3
@@ -19,3 +20,34 @@ jobs:
             if (match) {
               return match[0][1]
             }
+
+      - uses: actions/github-script@v3
+        env:
+          RELEASE: ${{ steps.version-result.outputs.result }}
+        with:
+          github-token: ${{secrets.GITHUB_TOKEN}}
+          script: |
+            const issue = await github.issues.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number
+            })
+            const currentLabels = issue.data.labels.map( l => l.name)
+            const newLabel = `${process.env.RELEASE} release`
+            if (!currentLabels.includes(newLabel)) {
+              const otherReleaseLabels = currentLabels.filter( l => l.endsWith(' release'))
+              if (otherReleaseLabels.length) {
+                github.issues.removeLabel({
+                  issue_number: context.issue.number,
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  name: [otherReleaseLabels]
+                })
+              }
+              github.issues.addLabels({
+                issue_number: context.issue.number,
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                labels: [newLabel]
+              })
+            }