[Patch] change the default value of shared_buffers in postgresql.conf.sample

Hi all

In PostgreSQL 14, The default value of shared_buffers is 128MB, but in postgresql.conf.sample, the default value of shared_buffers is 32MB.

I think the following changes should be made.

File: postgresql\src\backend\utils\misc\ postgresql.conf.sample
#shared_buffers = 32MB => #shared_buffers = 128MB

[PostgreSQL 14]
shared_buffers (integer)
Sets the amount of memory the database server uses for shared memory buffers. The default is typically 128 megabytes (128MB)
https://www.postgresql.org/docs/14/runtime-config-resource.html

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In PostgreSQL 9.2, The default value of shared_buffers is 32MB.

[PostgreSQL 9.2]
shared_buffers (integer)
Sets the amount of memory the database server uses for shared memory buffers. The default is typically 32 megabytes (32MB)
https://www.postgresql.org/docs/9.2/runtime-config-resource.html

Here is a patch.

Best Regards!