ci: update db, search, and python matrix

.github/workflows/tests.yml

@@ -31,33 +31,30 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9]
+        python-version: [3.8, 3.9]
         requirements-level: [pypi]
         cache-service: [redis]
-        db-service: [postgresql11, postgresql13, mysql5, mysql8]
-        search-service: [opensearch1, elasticsearch7]
+        db-service: [postgresql13, postgresql14, mysql8]
+        search-service: [opensearch2, elasticsearch7]
         exclude:
           - python-version: 3.7
-            db-service: postgresql13
+            db-service: postgresql14
 
           - python-version: 3.7
             db-service: mysql8
 
         include:
-          - db-service: postgresql11
-            DB_EXTRAS: "postgresql"
-
           - db-service: postgresql13
             DB_EXTRAS: "postgresql"
 
-          - db-service: mysql5
-            DB_EXTRAS: "mysql"
+          - db-service: postgresql14
+            DB_EXTRAS: "postgresql"
 
           - db-service: mysql8
             DB_EXTRAS: "mysql"
 
-          - search-service: opensearch1
-            SEARCH_EXTRAS: "opensearch1"
+          - search-service: opensearch2
+            SEARCH_EXTRAS: "opensearch2"
 
           - search-service: elasticsearch7
             SEARCH_EXTRAS: "elasticsearch7"