specified ubuntu versions. added humble ci

.github/workflows/humble.yml

@@ -0,0 +1,25 @@
+name: Humble CI
+on:
+  push:
+    branches:
+      - 'humble'
+  pull_request:
+    branches:
+      - 'humble'
+  workflow_dispatch:
+    branches:
+      - '*'
+jobs:
+  industrial_ci:
+    strategy:
+      matrix:
+        env:
+          - {ROS_DISTRO: humble, ROS_REPO: testing}
+          - {ROS_DISTRO: humble, ROS_REPO: main}
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - uses: 'ros-industrial/industrial_ci@master'
+        env: ${{matrix.env}}

.github/workflows/melodic.yml

@@ -1,5 +1,4 @@
 name: Melodic CI
-
 on:
   push:
     branches:
@@ -17,7 +16,7 @@ jobs:
         env:
           - {ROS_DISTRO: melodic, ROS_REPO: testing}
           - {ROS_DISTRO: melodic, ROS_REPO: main}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v2
         with:

.github/workflows/noetic.yml

@@ -1,6 +1,4 @@
 name: Noetic CI
-
-name: core-ubu20
 on:
   push:
     branches:
@@ -20,7 +18,7 @@ jobs:
         env:
           - {ROS_DISTRO: noetic, ROS_REPO: testing}
           - {ROS_DISTRO: noetic, ROS_REPO: main}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
         with: