ci: shorten signoff identity to satisfy gitlint

Signed-off-by: Henri Rosten <henri.rosten@unikie.com>

Author: henrirosten

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

@@ -62,9 +62,9 @@ jobs:
         shell: bash
         run: |
           git config --global user.name "github-actions[bot]"
-          git config --global user.email "github-actions[bot]@users.noreply.github.com"
+          git config --global user.email "github-actions@users.noreply.github.com"
           git config user.name "github-actions[bot]"
-          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git config user.email "github-actions@users.noreply.github.com"
 
       - name: Create or update pull request
         uses: peter-evans/create-pull-request@c0f553fe549906ede9cf27b5156039d195d2ece0
@@ -76,8 +76,8 @@ jobs:
             flake.lock
             hosts/hetzci/plugins.json
             hosts/uae/azureci/plugins.json
-          committer: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
-          author: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
+          committer: github-actions[bot] <github-actions@users.noreply.github.com>
+          author: github-actions[bot] <github-actions@users.noreply.github.com>
           commit-message: |
             flake.lock: Update flake inputs and Jenkins plugins