Add Flake8 comprehensions to pre-commit (#7235)

* ci(pre-commit): Add ``flake8-comprehensions`` to ``pre-commit`` (#7233)

* refactor: Fix ``flake8-comprehensions`` errors

* fix: Replace `map` with generator (#7233)

* fix: Cast `range` objects to `list`

strings/aho_corasick.py

@@ -70,9 +70,7 @@ class Automaton:
         >>> A.search_in("whatever, err ... , wherever")
         {'what': [0], 'hat': [1], 'ver': [5, 25], 'er': [6, 10, 22, 26]}
         """
-        result: dict = (
-            dict()
-        )  # returns a dict with keywords and list of its occurrences
+        result: dict = {}  # returns a dict with keywords and list of its occurrences
         current_state = 0
         for i in range(len(string)):
             while (