update planner test

Signed-off-by: Richard Chien <[email protected]>

src/frontend/planner_test/tests/testdata/output/agg.yaml

@@ -801,7 +801,7 @@
     Failed to bind expression: abs(a) FILTER (WHERE a > 0)
 
     Caused by:
-      Invalid input syntax: DISTINCT, ORDER BY or FILTER is only allowed in aggregation functions, but `abs` is not an aggregation function
+      Invalid input syntax: `FILTER` is not allowed in scalar/table function call
 - name: prune column before filter
   sql: |
     create table t(v1 int, v2 int);

src/frontend/planner_test/tests/testdata/output/over_window_function.yaml

@@ -62,7 +62,7 @@
     Failed to bind expression: lag(x)
 
     Caused by:
-      Invalid input syntax: Window function `lag` must have OVER clause
+      function lag(integer) does not exist, do you mean log
 - id: lag with empty over clause
   sql: |
     create table t(x int);