Add --without-python to resource group run_tests

Seems resource group run_tests task didn't configure with Python
before and seems image doesn't have PYTHON, as changing the configure
default failed the job. Hence, explicitely adding --without-python to
retain old functionality with changed default.

concourse/scripts/ic_gpdb_resgroup.bash

@@ -62,7 +62,7 @@ run_resgroup_test() {
             --without-zlib --without-rt --without-libcurl \
             --without-libedit-preferred --without-docdir --without-readline \
             --disable-gpcloud --disable-gpfdist --disable-orca \
-            --disable-pxf ${CONFIGURE_FLAGS}
+            --disable-pxf --without-python ${CONFIGURE_FLAGS}
 
         make -C /home/gpadmin/gpdb_src/src/test/regress
         ssh sdw1 mkdir -p /home/gpadmin/gpdb_src/src/test/regress </dev/null