Regression tests failures on Windows Server 2019 - on master at commit # d816f366b

Hi,

It looks like regression tests are failing on Windows Server 2019 [1].
Ignore if it's reported elsewhere.

[1] https://github.com/postgres/postgres/runs/5419324953
❌ 00:02 test_pl

[08:28:53.758]
[08:28:53.758] c:\cirrus>call "C:/Program
Files/Git/usr/bin/timeout.exe" -v -k60s 15m perl
src/tools/msvc/vcregress.pl plcheck
[08:28:53.953] ============================================================
[08:28:53.953] Checking plpgsql
[08:28:53.977] (using postmaster on Unix socket, default port)
[08:28:53.977] ============== dropping database "pl_regression"
==============
[08:28:56.044] psql: error: connection to server at "localhost" (::1),
port 5432 failed: Connection refused (0x0000274D/10061)
[08:28:56.044] Is the server running on that host and accepting TCP/IP
connections?
[08:28:56.044] connection to server at "localhost" (127.0.0.1), port
5432 failed: Connection refused (0x0000274D/10061)
[08:28:56.044] Is the server running on that host and accepting TCP/IP
connections?
[08:28:56.050] command failed: "c:/cirrus/Debug/psql/psql" -X -c "SET
client_min_messages = warning" -c "DROP DATABASE IF EXISTS
\"pl_regression\"" "postgres"
[08:28:56.063]
[08:28:56.063] c:\cirrus>if 2 NEQ 0 exit /b 2
[08:28:56.084]
[08:28:56.084] Exit status: 2

Regards,
Bharath Rupireddy.