Build: Update Postgres script (#2130)

appveyor.yml

@@ -9,12 +9,10 @@ skip_commits:
 # install:
 #   - choco install dotnet-sdk --version 8.0.100
 
-stack: postgresql 15
-
 environment:
   Appveyor: true
   # Postgres
-  POSTGRES_PATH: C:\Program Files\PostgreSQL\15
+  POSTGRES_PATH: C:\Program Files\PostgreSQL\16
   PGUSER: postgres
   PGPASSWORD: Password12!
   POSTGRES_ENV_POSTGRES_USER: postgres
@@ -32,14 +30,11 @@ environment:
   PostgesConnectionString: Server=localhost;Port=5432;User Id=postgres;Password=Password12!;Database=test
   SqlServerConnectionString: Server=(local)\SQL2019;Database=tempdb;User ID=sa;Password=Password12!
 
-services:
-  # - mysql
-  - postgresql15
-
 init:
   - git config --global core.autocrlf input
   - SET PATH=%POSTGRES_PATH%\bin;%MYSQL_PATH%\bin;%PATH%
   - net start MSSQL$SQL2019
+  - net start postgresql-x64-16
   - ps: Start-Service MySQL80
 
 nuget: