Enable dependabot (#60)

* enable dependabot

* trigger on push to master

.github/workflows/security_submit_dependencies.yml

@@ -0,0 +1,28 @@
+name: Generate dependency graph for tower-agent
+on:
+  push:
+      branches: ['master']
+
+
+permissions:
+  contents: write
+
+jobs:
+  dependency-submission:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Setup Graalvm
+      uses: graalvm/setup-graalvm@v1
+      with:
+        java-version: '21'
+        distribution: 'graalvm-community'
+        native-image-musl: 'true'
+
+
+    - name: Generate and submit dependency graph for tower-agent
+      uses: gradle/actions/dependency-submission@v4
+      with:
+        dependency-resolution-task: "dependencies"
+        additional-arguments: "--configuration runtimeClasspath"
+        dependency-graph: generate-and-submit