workflows: upgrade actions/github-script to v6

.github/workflows/dispatch-build-bottle.yml

@@ -37,7 +37,7 @@ jobs:
     steps:
       - name: Prepare runner matrix
         id: runner-matrix
-        uses: actions/github-script@v5
+        uses: actions/github-script@v6
         with:
           script: |
             return context.payload.inputs.runner.split(",")

.github/workflows/tests.yml

@@ -55,11 +55,11 @@ jobs:
     steps:
       - name: Check for CI labels
         id: check-labels
-        uses: actions/github-script@v3
+        uses: actions/github-script@v6
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
-            const { data: { labels: labels } } = await github.pulls.get({
+            const { data: { labels: labels } } = await github.rest.pulls.get({
               owner: context.repo.owner,
               repo: context.repo.repo,
               pull_number: context.issue.number