github: update PSL workflow

- Use the pull request action utilized by GitHub for their own projects

- Switch to $GITHUB_ENV since set-env has been deprecated

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

.github/workflows/update_publicsuffix_data.yml

@@ -14,19 +14,22 @@ jobs:
         run: |
           git config user.name "GitHub Actions"
           git config user.email noreply@github.com
+          git checkout -b bot/update-psl
 
       - name: Download new publicsuffix data
         run: curl -L https://github.com/mozilla-mobile/android-components/raw/master/components/lib/publicsuffixlist/src/main/assets/publicsuffixes -o autofill-parser/src/main/assets/publicsuffixes
 
       - name: Compare list changes
-        run: if [[ $(git diff --binary --stat) != '' ]]; then echo "::set-env name=UPDATED::true"; fi
+        run: if [[ $(git diff --binary --stat) != '' ]]; then echo "UPDATED=true" >> $GITHUB_ENV; fi
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v3
+        uses: repo-sync/pull-request@v2
         if: env.UPDATED == 'true'
         with:
-          commit-message: Update Public Suffix List data
-          branch: bot/update-psl
-          base: develop
-          title: 'Update Public Suffix List data'
+          source_branch: bot/update-psl
+          destination_branch: develop
+          pr_title: "Update Public Suffix List data"
+          pr_body: "This is an automated pull request to update the publicsuffixes file to the latest copy from Mozilla"
           assignees: msfjarvis
+          pr_label: PSL
+          github_token: ${{ secrets.GITHUB_TOKEN }}