Replace devel with stable-2.12.

Author: felixfontein

.github/workflows/ansible-test.yml

@@ -26,7 +26,7 @@ jobs:
           - stable-2.9
           - stable-2.10
           - stable-2.11
-          - devel
+          - stable-2.12
     runs-on: ubuntu-latest
     steps:
 
@@ -72,7 +72,7 @@ jobs:
           - stable-2.9
           - stable-2.10
           - stable-2.11
-          - devel
+          - stable-2.12
 
     steps:
       - name: Check out code

README.md

@@ -10,7 +10,7 @@ You can find [documentation for this collection on my Ansible docsite](https://a
 
 ## Tested with Ansible
 
-Tested with the current Ansible 2.9, ansible-base 2.10 and ansible-core 2.11 releases and the current development version of ansible-core. Ansible versions before 2.9.10 are not supported.
+Tested with the current Ansible 2.9, ansible-base 2.10, ansible-core 2.11 and ansible-core 2.12 releases. Ansible versions before 2.9.10 are not supported.
 
 ## External requirements