KTL-2822 Changed token secret for dependabot pull requests auto merging action.

Author: dkrasnoff

.github/workflows/dependabot-automerge.yml

@@ -8,12 +8,12 @@ jobs:
     steps:
       - uses: hmarr/auto-approve-action@v4
         with:
-          github-token: "${{ secrets.GITHUB_TOKEN }}"
+          github-token: "${{ secrets.AUTOMERGE_TOKEN }}"
   automerge:
     needs: auto-approve
     runs-on: ubuntu-latest
     if: github.actor == 'dependabot[bot]'
     steps:
       - uses: pascalgn/automerge-action@v0.16.4
         env:
-          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+          GITHUB_TOKEN: "${{ secrets.AUTOMERGE_TOKEN }}"