[Enhancement] Create GHA Workflow for cargo update

.github/workflows/cargo-update.yml

@@ -0,0 +1,78 @@
+######################## GNU General Public License 3.0 ########################
+##                                                                            ##
+## Copyright (C) 2023 Kevin Matthes                                           ##
+##                                                                            ##
+## This program is free software: you can redistribute it and/or modify       ##
+## it under the terms of the GNU General Public License as published by       ##
+## the Free Software Foundation, either version 3 of the License, or          ##
+## (at your option) any later version.                                        ##
+##                                                                            ##
+## This program is distributed in the hope that it will be useful,            ##
+## but WITHOUT ANY WARRANTY; without even the implied warranty of             ##
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              ##
+## GNU General Public License for more details.                               ##
+##                                                                            ##
+## You should have received a copy of the GNU General Public License          ##
+## along with this program.  If not, see <https://www.gnu.org/licenses/>.     ##
+##                                                                            ##
+################################################################################
+
+################################################################################
+##
+##  AUTHOR      Kevin Matthes
+##  BRIEF       Run `cargo update` and create a PR for the changes.
+##  COPYRIGHT   GPL-3.0
+##  DATE        2023
+##  FILE        cargo-update.yml
+##  NOTE        See `LICENSE' for full license.
+##              See `README.md' for project details.
+##
+################################################################################
+
+name: cargo-update
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  run:
+    name: run
+    runs-on: ubuntu-latest
+    steps:
+      - name: rustup
+        run: rustup update
+
+      - name: checkout
+        uses: actions/checkout@v3.5.2
+        with:
+          persist-credentials: false
+
+      - name: user
+        uses: fregante/setup-git-user@v2.0.1
+
+      - name: cargo
+        run: \
+          cargo update \
+          && git add . \
+          && git commit --allow-empty -m \
+                 "[`git config --list \
+                 | grep user\.name \
+                 | cut -d= -f2`] cargo update"
+
+      - name: pr
+        uses: peter-evans/create-pull-request@v5.0.1
+        with:
+          assignees: |
+            kevinmatthes
+          branch: feature/cargo-update
+          branch-suffix: timestamp
+          labels: |
+            enhancement
+          milestone: 4
+          title: '[GitHub Actions] cargo update'
+
+################################################################################

changelog.d/20230522_053853_Kevin_Matthes_cargo-update-workflow.rst

@@ -0,0 +1,5 @@
+Added
+.....
+
+- GitHub Action workflow:  ``cargo update`` on demand
+