add workflow for humble CI, add source dependencies

.github/workflows/humble.yaml

@@ -0,0 +1,15 @@
+name: Humble CI - Build and Test
+
+on:
+  push:
+    branches:
+      - 'humble'
+  pull_request:
+  workflow_dispatch:
+    branches:
+      - '*'
+
+jobs:
+  build_and_test:
+    uses: naturerobots/github_automation_public/.github/workflows/humble_ci.yaml@main
+    secrets: inherit

source_dependencies.yaml

@@ -0,0 +1,11 @@
+# Every repository listed here will get cloned and built during CI runs.
+# Use this for repositories that cannot be installed via rosdep.
+repositories:
+  uos/lvr2:
+    type: git
+    url: https://github.com/uos/lvr2.git
+    version: humble
+  naturerobots/mesh_tools:
+    type: git
+    url: https://github.com/naturerobots/mesh_tools.git
+    version: humble