Revert "chore(neon_test_utils): restrict installation to superuser" (#…

…7679)

This reverts commit 1173ee6.

## Problem

It breaks autoscaling tests

pgxn/neon_test_utils/neon_test_utils.control

@@ -3,5 +3,4 @@ comment = 'helpers for neon testing and debugging'
 default_version = '1.1'
 module_pathname = '$libdir/neon_test_utils'
 relocatable = true
-trusted = false
-superuser = true
+trusted = true