Merge pull request #465 from 1Password/mrj/nix-flake-update-ci-improved

fix(ci): Use 1Password-bot token for flake update PRs so approval job runs

Author: mrjones2014

.github/workflows/update-flake-dependencies.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: DeterminateSystems/magic-nix-cache-action@main
       - name: Update flake.lock and create signed commit with flake.lock changes
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.OP_BOT_TOKEN }}
           FILE_TO_COMMIT: flake.lock
           COMMIT_BRANCH: automation/update-flake-dependencies
           COMMIT_MESSAGE: "chore(nix): Update Flake dependencies"