Loosen the manual server shell compatibility check to allow for shell…

… 8.0.38 built for 8.0.39 (#556)

* Loosen the manual server shell compatibility check to allow for shell 8.0.38 built for 8.0.39

* Fix failing unit test

lib/charms/mysql/v0/mysql.py

@@ -134,7 +134,7 @@ def wait_until_mysql_connection(self) -> None:
 # Increment this major API version when introducing breaking changes
 LIBAPI = 0
 
-LIBPATCH = 76
+LIBPATCH = 77
 
 UNIT_TEARDOWN_LOCKNAME = "unit-teardown"
 UNIT_ADD_LOCKNAME = "unit-add"
@@ -2311,7 +2311,7 @@ def verify_server_upgradable(self, instance: Optional[str] = None) -> None:
             "try:",
             "    util.check_for_server_upgrade(options={'outputFormat': 'JSON'})",
             "except ValueError:",  # ValueError is raised for same version check
-            "    if session.run_sql('select @@version').fetch_all()[0][0].split('-')[0] == shell.version.split()[1]:",
+            "    if session.run_sql('select @@version').fetch_all()[0][0].split('-')[0] in shell.version:",
             "        print('SAME_VERSION')",
             "    else:",
             "        raise",

tests/unit/test_mysql.py

@@ -1746,7 +1746,7 @@ def test_verify_server_upgradable(self, _run_mysqlsh_script):
             "shell.connect('clusteradmin:[email protected]:3306')",
             "try:\n    util.check_for_server_upgrade(options={'outputFormat': 'JSON'})",
             "except ValueError:",
-            "    if session.run_sql('select @@version').fetch_all()[0][0].split('-')[0] == shell.version.split()[1]:",
+            "    if session.run_sql('select @@version').fetch_all()[0][0].split('-')[0] in shell.version:",
             "        print('SAME_VERSION')",
             "    else:",
             "        raise",