treewide: Fix mysql alias deprecation breakage

62733b37b4 broke evaluation in all
places `pkgs.mysql` was used. Fix this by changing all occurrences to
`pkgs.mariadb`.

(cherry picked from commit 59e0120aa5c1241d48048afa615e25c65d7e366d)

nixos/tests/bitwarden.nix

@@ -42,7 +42,7 @@ let
                 GRANT ALL ON `bitwarden`.* TO 'bitwardenuser'@'localhost';
                 FLUSH PRIVILEGES;
               '';
-              package = pkgs.mysql;
+              package = pkgs.mariadb;
             };
 
             services.bitwarden_rs.config.databaseUrl = "mysql://bitwardenuser:${dbPassword}@localhost/bitwarden";

nixos/tests/matomo.nix

@@ -18,7 +18,7 @@ let
       };
       services.mysql = {
         enable = true;
-        package = pkgs.mysql;
+        package = pkgs.mariadb;
       };
       services.nginx.enable = true;
     };

nixos/tests/mysql/mysql-autobackup.nix

@@ -8,7 +8,7 @@ import ./../make-test-python.nix ({ pkgs, lib, ... }:
     { pkgs, ... }:
     {
       services.mysql.enable = true;
-      services.mysql.package = pkgs.mysql;
+      services.mysql.package = pkgs.mariadb;
       services.mysql.initialDatabases = [ { name = "testdb"; schema = ./testdb.sql; } ];
 
       services.automysqlbackup.enable = true;

nixos/tests/mysql/mysql-backup.nix

@@ -10,7 +10,7 @@ import ./../make-test-python.nix ({ pkgs, ... } : {
       services.mysql = {
         enable = true;
         initialDatabases = [ { name = "testdb"; schema = ./testdb.sql; } ];
-        package = pkgs.mysql;
+        package = pkgs.mariadb;
       };
 
       services.mysqlBackup = {

nixos/tests/mysql/mysql-replication.nix

@@ -17,7 +17,7 @@ in
 
       {
         services.mysql.enable = true;
-        services.mysql.package = pkgs.mysql;
+        services.mysql.package = pkgs.mariadb;
         services.mysql.replication.role = "master";
         services.mysql.replication.slaveHost = "%";
         services.mysql.replication.masterUser = replicateUser;
@@ -31,7 +31,7 @@ in
 
       {
         services.mysql.enable = true;
-        services.mysql.package = pkgs.mysql;
+        services.mysql.package = pkgs.mariadb;
         services.mysql.replication.role = "slave";
         services.mysql.replication.serverId = 2;
         services.mysql.replication.masterHost = nodes.master.config.networking.hostName;
@@ -44,7 +44,7 @@ in
 
       {
         services.mysql.enable = true;
-        services.mysql.package = pkgs.mysql;
+        services.mysql.package = pkgs.mariadb;
         services.mysql.replication.role = "slave";
         services.mysql.replication.serverId = 3;
         services.mysql.replication.masterHost = nodes.master.config.networking.hostName;

nixos/tests/sogo.nix

@@ -10,7 +10,7 @@ import ./make-test-python.nix ({ pkgs, ... }: {
 
       services.mysql = {
         enable = true;
-        package = pkgs.mysql;
+        package = pkgs.mariadb;
         ensureDatabases = [ "sogo" ];
         ensureUsers = [{
           name = "sogo";