update sanity and unit tests matrix to support ansible-core 2.21 (#194)

Author: abikouo

.github/workflows/sanity.yml

@@ -29,6 +29,14 @@ on:
               "ansible-version": "devel",
               "python-version": "3.10"
             },
+            {
+              "ansible-version": "stable-2.21",
+              "python-version": "3.11"
+            },
+            {
+              "ansible-version": "stable-2.21",
+              "python-version": "3.10"
+            },
             {
               "ansible-version": "stable-2.20",
               "python-version": "3.11"
@@ -107,6 +115,7 @@ jobs:
           - stable-2.18
           - stable-2.19
           - stable-2.20
+          - stable-2.21
           - devel
         python-version:
           # 2.16 supports Python 3.10-3.11

.github/workflows/unit_source.yml

@@ -49,6 +49,14 @@ on:
               "ansible-version": "milestone",
               "python-version": "3.10"
             },
+            {
+              "ansible-version": "stable-2.21",
+              "python-version": "3.11"
+            },
+            {
+              "ansible-version": "stable-2.21",
+              "python-version": "3.10"
+            },
             {
               "ansible-version": "stable-2.20",
               "python-version": "3.11"
@@ -114,6 +122,7 @@ jobs:
           - stable-2.18
           - stable-2.19
           - stable-2.20
+          - stable-2.21
           - devel
         python-version:
           # 2.16 supports Python 3.10-3.11