[Windows] Update PostgreSQL way to install (#6824)

images/win/scripts/Installers/Install-PostgreSQL.ps1

@@ -8,10 +8,41 @@ Set-SystemVariable -SystemVariable PGPASSWORD -Value $pgPwd
 
 # Define latest available version to install based on version specified in the toolset
 $toolsetVersion = (Get-ToolsetContent).postgresql.version
-$latestChocoPackage = Get-LatestChocoPackageVersion -TargetVersion $toolsetVersion -PackageName "postgresql"
+$getPostgreReleases =  Invoke-WebRequest -Uri "https://git.postgresql.org/gitweb/?p=postgresql.git;a=tags" -UseBasicParsing
+# Getting all links matched to the pattern (e.g.a=log;h=refs/tags/REL_14)
+$TargetReleases = $getPostgreReleases.Links.href | Where-Object {$_ -match "a=log;h=refs/tags/REL_$toolsetVersion"}
+[Int32]$OutNumber = $null
+$MinorVersions = @()
+foreach ($release in $TargetReleases) {
+  $version = $release.split('/')[-1]
+  # Checking if the latest symbol of the release version is actually a number. If yes, add to $MinorVersions array
+  if ([Int32]::TryParse($($version.Split('_')[-1]),[ref]$OutNumber)){
+    $MinorVersions += $OutNumber
+  }
+}
+# Sorting and getting the last one
+$TargetMinorVersions = ($MinorVersions | Sort-Object)[-1]
 
 # Install latest PostgreSQL
-Choco-Install -PackageName postgresql -ArgumentList "--params", "'/Password:$pgPwd /NoPath'", "--params-global", "--version=$latestChocoPackage"
+# In order to get rid of error messages (we know we will have them), force ErrorAction to SilentlyContinue
+$ErrorActionOldValue = $ErrorActionPreference
+$ErrorActionPreference = 'SilentlyContinue'
+# Starting from number 9 and going down, check if the installer is available. If yes, break the loop.
+foreach ($increment in 9..0) {
+    $url = "https://get.enterprisedb.com/postgresql/postgresql-$toolsetVersion.$TargetMinorVersions-$increment-windows-x64.exe"
+    $checkaccess = [System.Net.WebRequest]::Create($url)
+    $response = $null
+    $response = $checkaccess.GetResponse()
+    if ($response) {
+        $InstallerUrl = $response.ResponseUri.OriginalString
+        break
+    }
+}
+# Return the previous value of ErrorAction and invoke Install-Binary function
+$ErrorActionPreference = $ErrorActionOldValue
+$InstallerName = $InstallerUrl.Split('/')[-1]
+$ArgumentList = ("--install_runtimes 0","--superpassword root","--enable_acledit 1","--unattendedmodeui none","--mode unattended")
+Install-Binary -Url $InstallerUrl -Name $InstallerName -ArgumentList $ArgumentList
 
 # Get Path to pg_ctl.exe
 $pgPath = (Get-CimInstance Win32_Service -Filter "Name LIKE 'postgresql-%'").PathName