Enable src/bin TAP tests in CI

[reshke]

This is my attempt to get TAP tests in Cloudberry CI.

x-ref to my sandbox repo
open-gpdb#10

[reshke]

Currrently initdb TAP test fails due to

# Running: initdb -N -T german -X /__w/cloudberry/cloudberry/src/bin/initdb/tmp_check/tmp_test_IKXO/pgxlog /__w/cloudberry/cloudberry/src/bin/initdb/tmp_check/tmp_test_IKXO/data
initdb: error: The program "postgres" is needed by initdb but was not found in the
same directory as "/__w/cloudberry/cloudberry/src/bin/initdb/initdb".

locally I fix it this source /path/to/cloubderry-env.sh

UPD: looks like I need to make installcheck instead of make check

[reshke]

I think our CI is missing this icw-test check

cloudberry/.github/workflows/build.yml

Line 36 in a31ea51

icw-test: