Added Dependabot and GitHub Actions

Author: amin-aoulkadi

.github/dependabot.yml

@@ -0,0 +1,20 @@
+version: 2
+
+updates:
+  # Version updates for GitHub Actions:
+  - package-ecosystem: "github-actions"
+    directory: "/" # Refers to ".github/workflows".
+    schedule:
+      interval: "weekly"
+
+  # Version updates for Dockerfiles:
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+
+  # Version updates for Docker Compose:
+  - package-ecosystem: "docker-compose"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/scala-steward.conf

@@ -0,0 +1,7 @@
+#
+# Configuration for Scala Steward.
+#
+# Reference: https://github.com/scala-steward-org/scala-steward/blob/main/docs/repo-specific-configuration.md
+#
+
+updatePullRequests = "always"

.github/workflows/dependency-graph.yml

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+#
+# Uses the sbt-dependency-submission GitHub Action to update the dependency graph on GitHub.
+#
+# This makes Dependabot alerts possible. However, Dependabot security updates and Dependabot version updates for sbt dependencies remain unavailable because Dependabot does not support sbt.
+#
+
+name: Update Dependency Graph
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: write # Required to submit the dependency graph to GitHub.
+
+jobs:
+  dependency-graph:
+    name: Update Dependency Graph
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+      - uses: sbt/setup-sbt@v1
+      - uses: scalacenter/sbt-dependency-submission@v3

.github/workflows/scala-steward.yml

@@ -0,0 +1,21 @@
+#
+# Uses the Scala Steward GitHub Action to upgrade dependencies.
+#
+
+name: Scala Steward
+
+on:
+  workflow_dispatch: # Makes it possible to trigger the workflow manually.
+  schedule:
+    - cron: "0 0 * * SAT" # 00:00 on Saturdays
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  scala-steward:
+    name: Scala Steward
+    runs-on: ubuntu-latest
+    steps:
+      - uses: scala-steward-org/scala-steward-action@v2