Merge pull request #112 from EspressoSystems/dependabot/github_actions/DeterminateSystems/update-flake-lock-21

build(deps): bump DeterminateSystems/update-flake-lock from 20 to 21

Author: jbearer

.github/workflows/update_nix.yml

@@ -18,7 +18,7 @@ jobs:
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
 
       - name: Update flake.lock
-        uses: DeterminateSystems/update-flake-lock@v20
+        uses: DeterminateSystems/update-flake-lock@v21
         with:
           pr-title: "Weekly PR to bump flake.nix" # Title of PR to be created
           pr-labels: |                  # Labels to be set on the PR