fix: remove reference to environment and secret (#47)

.github/workflows/upgrade.yml

@@ -9,7 +9,6 @@ on:
 jobs:
   upgrade-dep:
     runs-on: ubuntu-latest
-    environment: upgrade action
     steps:
       - uses: actions/checkout@v3
 
@@ -24,7 +23,7 @@ jobs:
 
       - name: create pull request
         id: create-pull-request
-        uses: peter-evans/create-pull-request@v4
+        uses: peter-evans/create-pull-request@v6
         with:
             commit-message: "chore: ↗️ update dependencies"
             title: "chore: ↗️ update dependencies"
@@ -33,12 +32,10 @@ jobs:
   
               Auto-generated by a Github Action
             branch: upgrade-dependencies
-            token: ${{ secrets.UPGRADE_GITHUB_TOKEN }} 
 
       - name: automerge pull request
         if: steps.create-pull-request.outputs.pull-request-operation == 'created'
-        uses: peter-evans/enable-pull-request-automerge@v2
+        uses: peter-evans/enable-pull-request-automerge@v3
         with:
           pull-request-number: ${{ steps.create-pull-request.outputs.pull-request-number }}
           merge-method: squash
-          token: ${{ secrets.UPGRADE_GITHUB_TOKEN }}