ci: Generate crashlogs on Windows

This configures cdb.exe to log all crashes to
"<workspace>\crashlogs\crashlog-<pid-in-hex>.txt" (as it was previously set up
for cirrus-ci based CI). The upload logs step already collects these logs.

The logic is copied from the generation of Postgres CI Windows images for
cirrus-ci [1].  Since this would be too long to include inline in pg-ci.yml,
it is implemented as 'src/tools/ci/gha_setup_windows_debugger.ps1' script.

[1] https://github.com/anarazel/pg-vm-images/blob/main/scripts/windows_install_dbg.ps1

Author: Nazir Bilal Yavuz <byavuz81@gmail.com>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CAN55FZ1BgsXSTzOpehnMa4NzWL8Aivsxx-di7-VT6bZ3j2Omow%40mail.gmail.com
Discussion: https://postgr.es/m/iggjozfshwbqpv33x5jqwtju5k5zrkyu3257dlifxkhtpg7eoq@k2ccyrdi5dtu
Backpatch-through: 19, where GHA CI was added

.github/workflows/pg-ci.yml

@@ -990,6 +990,11 @@ jobs:
         shell: cmd
         run: mkdir ${{env.PG_REGRESS_SOCK_DIR}}
 
+      - &windows_setup_debugger_step
+        name: Setup Windows debugger
+        shell: pwsh
+        run: src/tools/ci/gha_setup_windows_debugger.ps1
+
       - name: Configure
         run: |
           call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" x64
@@ -1019,9 +1024,6 @@ jobs:
             call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" x64
         run: *meson_test_world_cmd
 
-      # TODO: We need to collect crashlogs but for them to be generated, we'd
-      # have to configure the JIT Debugger to do so. cdb.exe is installed on
-      # the runner so that is possible.
       - *upload_logs_step
 
 
@@ -1116,6 +1118,8 @@ jobs:
         shell: cmd
         run: mkdir ${{env.PG_REGRESS_SOCK_DIR}}
 
+      - *windows_setup_debugger_step
+
       - *ccache_restore_default_step
       - *ccache_restore_branch_step
 
@@ -1138,9 +1142,6 @@ jobs:
       - name: Test world
         run: *meson_test_world_cmd
 
-      # TODO: We want to include crashlogs, but they are not yet
-      # collected. cdb.exe is installed on the runner, so we can configure it
-      # appropriately.
       - *upload_logs_step