[feat](ci) enable enable_parquet_page_index in pipeline (#48217)

### What problem does this PR solve?

There are some unknown bugs with `enable_parquet_page_index` enabled.
So by default it is false, only enable it in ci pipeline for debugging.

regression-test/pipeline/cloud_p0/conf/be_custom.conf

@@ -42,3 +42,6 @@ enable_brpc_connection_check=true
 enable_write_index_searcher_cache=true
 
 sys_log_verbose_modules=query_context,runtime_query_statistics_mgr
+
+# So feature has bug, so by default is false, only open it in pipeline to observe
+enable_parquet_page_index=true

regression-test/pipeline/external/conf/be.conf

@@ -68,3 +68,6 @@ KRB5_CONFIG=/keytabs/krb5.conf
 kerberos_krb5_conf_path=/keytabs/krb5.conf
 pipeline_task_leakage_detect_period_sec=1
 crash_in_memory_tracker_inaccurate = true
+
+# So feature has bug, so by default is false, only open it in pipeline to observe
+enable_parquet_page_index=true

regression-test/pipeline/p0/conf/be.conf

@@ -77,3 +77,6 @@ enable_write_index_searcher_cache=true
 
 # enable download small files in batch, see apache/doris#45061 for details
 enable_batch_download = true
+
+# So feature has bug, so by default is false, only open it in pipeline to observe
+enable_parquet_page_index=true

regression-test/pipeline/p1/conf/be.conf

@@ -69,3 +69,6 @@ enable_write_index_searcher_cache=true
 
 # enable download small files in batch, see apache/doris#45061 for details
 enable_batch_download = true
+
+# So feature has bug, so by default is false, only open it in pipeline to observe
+enable_parquet_page_index=true

regression-test/pipeline/performance/conf/be_custom.conf

@@ -21,3 +21,6 @@ priority_networks=127.0.0.1/24
 storage_root_path=/data/doris-storage-${branch_name}
 
 streaming_load_max_mb=102400
+
+# So feature has bug, so by default is false, only open it in pipeline to observe
+enable_parquet_page_index=true