chore: improve error message for function argument mismatch

[wangrunji0408]

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What's changed and what's your intention?

resolve #9273

This PR replaces unsupported function error by function does not exist:

 dev=> select foo();
 ERROR:  Failed to run the query

 Caused by these errors (recent errors listed first):
   1: Failed to bind expression: foo()
+  2: function foo() does not exist
-  2: Feature is not yet implemented: unsupported function: "foo"
-Tracking issue: https://github.com/risingwavelabs/risingwave/issues/112

Checklist

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