Hi, this PR is to solve #2267. The proposed changes are:

1. A new function AR_EXP_ContainsAgg() was created to check if AR_ExpNode tree contains an aggregating function.
   If an aggregating function is found, then the function sets the error message and returns true, otherwise, returns false

2. The function FilterTree_Valid() was modified to receive a second parameter cypher_astnode_type_t type. In case of pattern comprehension or list comprehension type, there is a new validation to check that the predicate is not using aggregation functions.

3. To validate list comprehension, the function ``_AR_ExpNodeFromComprehensionFunction()``` was modified:

   1. Validate predicate filters using CYPHER_AST_LIST_COMPREHENSION type
   2. Validate that aggregation function is not being used in evaluation node

4. To validate pattern comprehension, the function buildPatternComprehensionOps() was modified:

   1. Validate that aggregation function is not being used in evaluation node
   2. Validate filters using CYPHER_AST_PATTERN_COMPREHENSION type