Update Unity versions in unity-tests.yml for consistency

Author: IvanMurzak

.github/workflows/unity-tests.yml

@@ -18,12 +18,12 @@ jobs:
         projectPath:
           - './'
         unityVersion:
-          - '2019.2.13f1'
-          - '2019.3.15f1'
+          - '2019.2.11f1'
+          - '2019.3.10f1'
           - '2019.4.40f1'
-          - '2020.1.17f1'
-          - '2020.3.48f1'
-          - '2021.3.48f1'
+          - '2020.1.12f1'
+          - '2020.3.40f1'
+          - '2021.3.45f1'
           - '2022.3.57f1'
           - '2023.1.20f1'
           - '2023.2.20f1'