Remove Bionic from future releases (Garden+) (#70)

Signed-off-by: Louise Poubel <[email protected]>

.github/workflows/ci.yml

@@ -3,18 +3,6 @@ name: Ubuntu CI
 on: [push, pull_request]
 
 jobs:
-  bionic-ci:
-    runs-on: ubuntu-latest
-    name: Ubuntu Bionic CI
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Compile and test
-        id: ci
-        uses: ignition-tooling/action-ignition-ci@bionic
-        with:
-          codecov-enabled: true
-          doxygen-enabled: true
   focal-ci:
     runs-on: ubuntu-latest
     name: Ubuntu Focal CI
@@ -24,3 +12,8 @@ jobs:
       - name: Compile and test
         id: ci
         uses: ignition-tooling/action-ignition-ci@focal
+        with:
+          codecov-enabled: true
+          cppcheck-enabled: true
+          cpplint-enabled: true
+          doxygen-enabled: true

README.md

@@ -10,8 +10,8 @@
 Build | Status
 -- | --
 Test coverage | [![codecov](https://codecov.io/gh/ignitionrobotics/ign-plugin/branch/master/graph/badge.svg)](https://codecov.io/gh/ignitionrobotics/ign-plugin/branch/master)
-Ubuntu Bionic | [![Build Status](https://build.osrfoundation.org/job/ignition_plugin-ci-master-bionic-amd64/badge/icon)](https://build.osrfoundation.org/job/ignition_plugin-ci-master-bionic-amd64/)
-Homebrew      | [![Build Status](https://build.osrfoundation.org/job/ignition_plugin-ci-master-bionic-amd64/badge/icon)](https://build.osrfoundation.org/job/ignition_plugin-ci-master-bionic-amd64/)
+Ubuntu Focal | [![Build Status](https://build.osrfoundation.org/job/ignition_plugin-ci-master-focal-amd64/badge/icon)](https://build.osrfoundation.org/job/ignition_plugin-ci-master-focal-amd64/)
+Homebrew      | [![Build Status](https://build.osrfoundation.org/buildStatus/icon?job=ignition_plugin-ci-main-homebrew-amd64)](https://build.osrfoundation.org/job/ignition_plugin-ci-main-homebrew-amd64)
 Windows 7     | [![Build Status](https://build.osrfoundation.org/job/ignition_plugin-ci-master-windows7-amd64/badge/icon)](https://build.osrfoundation.org/job/ignition_plugin-ci-master-windows7-amd64/)
 
 ** Library for registering plugin libraries and dynamically loading them at runtime.**

tutorials/02_installation.md

@@ -11,8 +11,7 @@ The Source Installation instructions should be used if you need the very latest
 
 ## Prerequisites
 
-Ignition Plugin versions 1+ require Ubuntu Bionic, while version 0
-can be used with Ubuntu Xenial.
+Ubuntu Focal or higher.
 
 If you don't already have the `lsb-release` package installed, please do so now:
 ```bash